Home / 729,988.92-1,007,364.12-407,689.56

Finding the Fourth Proportional to 729,988.92, 1,007,364.12 and 407,689.56

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Solution

The fourth proportional to 729,988.92, 1,007,364.12 and 407,689.56 is: 562,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,988.92 : 1,007,364.12 = 407,689.56 : x
  2. Step 2: Convert to fraction form
    729,988.92/1,007,364.12 = 407,689.56/x
  3. Step 3: Cross multiply
    729,988.92x = 1,007,364.12 × 407,689.56
  4. Step 4: Simplify right side
    729,988.92x = 410,691,834,842.59
  5. Step 5: Solve for x
    x = 410,691,834,842.59/729,988.92
  6. Step 6: Final answer
    x = 562,600.09

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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.