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Finding the Fourth Proportional to 516,293.92, 712,198.74 and 479,760.49

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Solution

The fourth proportional to 516,293.92, 712,198.74 and 479,760.49 is: 661,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,293.92 : 712,198.74 = 479,760.49 : x
  2. Step 2: Convert to fraction form
    516,293.92/712,198.74 = 479,760.49/x
  3. Step 3: Cross multiply
    516,293.92x = 712,198.74 × 479,760.49
  4. Step 4: Simplify right side
    516,293.92x = 341,684,816,479.78
  5. Step 5: Solve for x
    x = 341,684,816,479.78/516,293.92
  6. Step 6: Final answer
    x = 661,802.91

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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.