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Finding the Fourth Proportional to 887,658.70, 1,330,710.45 and 532,813.90

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Solution

The fourth proportional to 887,658.70, 1,330,710.45 and 532,813.90 is: 798,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,658.70 : 1,330,710.45 = 532,813.90 : x
  2. Step 2: Convert to fraction form
    887,658.70/1,330,710.45 = 532,813.90/x
  3. Step 3: Cross multiply
    887,658.70x = 1,330,710.45 × 532,813.90
  4. Step 4: Simplify right side
    887,658.70x = 709,021,024,635.26
  5. Step 5: Solve for x
    x = 709,021,024,635.26/887,658.70
  6. Step 6: Final answer
    x = 798,754.10

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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.