Home / 729,694.92-1,006,936.68-407,425.42

Finding the Fourth Proportional to 729,694.92, 1,006,936.68 and 407,425.42

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Solution

The fourth proportional to 729,694.92, 1,006,936.68 and 407,425.42 is: 562,223.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,694.92 : 1,006,936.68 = 407,425.42 : x
  2. Step 2: Convert to fraction form
    729,694.92/1,006,936.68 = 407,425.42/x
  3. Step 3: Cross multiply
    729,694.92x = 1,006,936.68 × 407,425.42
  4. Step 4: Simplify right side
    729,694.92x = 410,251,599,762.41
  5. Step 5: Solve for x
    x = 410,251,599,762.41/729,694.92
  6. Step 6: Final answer
    x = 562,223.46

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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.