Home / 728,622.46-1,005,497.04-406,332.92

Finding the Fourth Proportional to 728,622.46, 1,005,497.04 and 406,332.92

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Solution

The fourth proportional to 728,622.46, 1,005,497.04 and 406,332.92 is: 560,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,622.46 : 1,005,497.04 = 406,332.92 : x
  2. Step 2: Convert to fraction form
    728,622.46/1,005,497.04 = 406,332.92/x
  3. Step 3: Cross multiply
    728,622.46x = 1,005,497.04 × 406,332.92
  4. Step 4: Simplify right side
    728,622.46x = 408,566,548,314.56
  5. Step 5: Solve for x
    x = 408,566,548,314.56/728,622.46
  6. Step 6: Final answer
    x = 560,738.34

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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.