Home / 859,083.60-1,288,617.18-522,217.28

Finding the Fourth Proportional to 859,083.60, 1,288,617.18 and 522,217.28

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Solution

The fourth proportional to 859,083.60, 1,288,617.18 and 522,217.28 is: 783,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,083.60 : 1,288,617.18 = 522,217.28 : x
  2. Step 2: Convert to fraction form
    859,083.60/1,288,617.18 = 522,217.28/x
  3. Step 3: Cross multiply
    859,083.60x = 1,288,617.18 × 522,217.28
  4. Step 4: Simplify right side
    859,083.60x = 672,938,158,700.87
  5. Step 5: Solve for x
    x = 672,938,158,700.87/859,083.60
  6. Step 6: Final answer
    x = 783,320.92

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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.