Home / 858,377.70-1,287,566.55-522,077.85

Finding the Fourth Proportional to 858,377.70, 1,287,566.55 and 522,077.85

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Solution

The fourth proportional to 858,377.70, 1,287,566.55 and 522,077.85 is: 783,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,377.70 : 1,287,566.55 = 522,077.85 : x
  2. Step 2: Convert to fraction form
    858,377.70/1,287,566.55 = 522,077.85/x
  3. Step 3: Cross multiply
    858,377.70x = 1,287,566.55 × 522,077.85
  4. Step 4: Simplify right side
    858,377.70x = 672,209,976,155.92
  5. Step 5: Solve for x
    x = 672,209,976,155.92/858,377.70
  6. Step 6: Final answer
    x = 783,116.78

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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.