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Finding the Fourth Proportional to 859,754.62, 1,287,950.31 and 708,169.33

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Solution

The fourth proportional to 859,754.62, 1,287,950.31 and 708,169.33 is: 1,060,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,754.62 : 1,287,950.31 = 708,169.33 : x
  2. Step 2: Convert to fraction form
    859,754.62/1,287,950.31 = 708,169.33/x
  3. Step 3: Cross multiply
    859,754.62x = 1,287,950.31 × 708,169.33
  4. Step 4: Simplify right side
    859,754.62x = 912,086,901,666.24
  5. Step 5: Solve for x
    x = 912,086,901,666.24/859,754.62
  6. Step 6: Final answer
    x = 1,060,868.86

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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.