Home / 748,905.80-1,123,358.70-216,444.20

Finding the Fourth Proportional to 748,905.80, 1,123,358.70 and 216,444.20

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Solution

The fourth proportional to 748,905.80, 1,123,358.70 and 216,444.20 is: 324,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,905.80 : 1,123,358.70 = 216,444.20 : x
  2. Step 2: Convert to fraction form
    748,905.80/1,123,358.70 = 216,444.20/x
  3. Step 3: Cross multiply
    748,905.80x = 1,123,358.70 × 216,444.20
  4. Step 4: Simplify right side
    748,905.80x = 243,144,475,134.54
  5. Step 5: Solve for x
    x = 243,144,475,134.54/748,905.80
  6. Step 6: Final answer
    x = 324,666.30

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Half scale
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Double scale
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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.