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Finding the Fourth Proportional to 710,484.70, 1,065,727.05 and 486,535.90

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Solution

The fourth proportional to 710,484.70, 1,065,727.05 and 486,535.90 is: 729,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,484.70 : 1,065,727.05 = 486,535.90 : x
  2. Step 2: Convert to fraction form
    710,484.70/1,065,727.05 = 486,535.90/x
  3. Step 3: Cross multiply
    710,484.70x = 1,065,727.05 × 486,535.90
  4. Step 4: Simplify right side
    710,484.70x = 518,514,469,426.10
  5. Step 5: Solve for x
    x = 518,514,469,426.10/710,484.70
  6. Step 6: Final answer
    x = 729,803.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.