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Finding the Fourth Proportional to 708,900.19, 979,098.96 and 516,169.91

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Solution

The fourth proportional to 708,900.19, 979,098.96 and 516,169.91 is: 712,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,900.19 : 979,098.96 = 516,169.91 : x
  2. Step 2: Convert to fraction form
    708,900.19/979,098.96 = 516,169.91/x
  3. Step 3: Cross multiply
    708,900.19x = 979,098.96 × 516,169.91
  4. Step 4: Simplify right side
    708,900.19x = 505,381,422,064.29
  5. Step 5: Solve for x
    x = 505,381,422,064.29/708,900.19
  6. Step 6: Final answer
    x = 712,909.14

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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.