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Finding the Fourth Proportional to 656,613.24, 906,126.24 and 354,807.24

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Solution

The fourth proportional to 656,613.24, 906,126.24 and 354,807.24 is: 489,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,613.24 : 906,126.24 = 354,807.24 : x
  2. Step 2: Convert to fraction form
    656,613.24/906,126.24 = 354,807.24/x
  3. Step 3: Cross multiply
    656,613.24x = 906,126.24 × 354,807.24
  4. Step 4: Simplify right side
    656,613.24x = 321,500,150,305.98
  5. Step 5: Solve for x
    x = 321,500,150,305.98/656,613.24
  6. Step 6: Final answer
    x = 489,633.97

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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.