Home / 729,446.48-1,006,655.08-407,154.96

Finding the Fourth Proportional to 729,446.48, 1,006,655.08 and 407,154.96

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Solution

The fourth proportional to 729,446.48, 1,006,655.08 and 407,154.96 is: 561,884.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,446.48 : 1,006,655.08 = 407,154.96 : x
  2. Step 2: Convert to fraction form
    729,446.48/1,006,655.08 = 407,154.96/x
  3. Step 3: Cross multiply
    729,446.48x = 1,006,655.08 × 407,154.96
  4. Step 4: Simplify right side
    729,446.48x = 409,864,608,831.20
  5. Step 5: Solve for x
    x = 409,864,608,831.20/729,446.48
  6. Step 6: Final answer
    x = 561,884.42

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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.