Home / 749,705.40-1,124,558.10-217,243.80

Finding the Fourth Proportional to 749,705.40, 1,124,558.10 and 217,243.80

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Solution

The fourth proportional to 749,705.40, 1,124,558.10 and 217,243.80 is: 325,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,705.40 : 1,124,558.10 = 217,243.80 : x
  2. Step 2: Convert to fraction form
    749,705.40/1,124,558.10 = 217,243.80/x
  3. Step 3: Cross multiply
    749,705.40x = 1,124,558.10 × 217,243.80
  4. Step 4: Simplify right side
    749,705.40x = 244,303,274,964.78
  5. Step 5: Solve for x
    x = 244,303,274,964.78/749,705.40
  6. Step 6: Final answer
    x = 325,865.70

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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.