Home / 731,496.92-1,009,503.80-409,212.40

Finding the Fourth Proportional to 731,496.92, 1,009,503.80 and 409,212.40

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Solution

The fourth proportional to 731,496.92, 1,009,503.80 and 409,212.40 is: 564,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,496.92 : 1,009,503.80 = 409,212.40 : x
  2. Step 2: Convert to fraction form
    731,496.92/1,009,503.80 = 409,212.40/x
  3. Step 3: Cross multiply
    731,496.92x = 1,009,503.80 × 409,212.40
  4. Step 4: Simplify right side
    731,496.92x = 413,101,472,807.12
  5. Step 5: Solve for x
    x = 413,101,472,807.12/731,496.92
  6. Step 6: Final answer
    x = 564,734.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.