Home / 748,901.40-1,123,352.10-216,439.80

Finding the Fourth Proportional to 748,901.40, 1,123,352.10 and 216,439.80

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Solution

The fourth proportional to 748,901.40, 1,123,352.10 and 216,439.80 is: 324,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,901.40 : 1,123,352.10 = 216,439.80 : x
  2. Step 2: Convert to fraction form
    748,901.40/1,123,352.10 = 216,439.80/x
  3. Step 3: Cross multiply
    748,901.40x = 1,123,352.10 × 216,439.80
  4. Step 4: Simplify right side
    748,901.40x = 243,138,103,853.58
  5. Step 5: Solve for x
    x = 243,138,103,853.58/748,901.40
  6. Step 6: Final answer
    x = 324,659.70

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Half scale
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Double scale
Find fourth proportional to 748,902.40, 1,123,353.60 and 216,440.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.