Home / 729,439.29-1,006,593.08-407,142.32

Finding the Fourth Proportional to 729,439.29, 1,006,593.08 and 407,142.32

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Solution

The fourth proportional to 729,439.29, 1,006,593.08 and 407,142.32 is: 561,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,439.29 : 1,006,593.08 = 407,142.32 : x
  2. Step 2: Convert to fraction form
    729,439.29/1,006,593.08 = 407,142.32/x
  3. Step 3: Cross multiply
    729,439.29x = 1,006,593.08 × 407,142.32
  4. Step 4: Simplify right side
    729,439.29x = 409,826,634,818.47
  5. Step 5: Solve for x
    x = 409,826,634,818.47/729,439.29
  6. Step 6: Final answer
    x = 561,837.89

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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.