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Finding the Fourth Proportional to 887,648.70, 1,330,695.45 and 532,803.90

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Solution

The fourth proportional to 887,648.70, 1,330,695.45 and 532,803.90 is: 798,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,648.70 : 1,330,695.45 = 532,803.90 : x
  2. Step 2: Convert to fraction form
    887,648.70/1,330,695.45 = 532,803.90/x
  3. Step 3: Cross multiply
    887,648.70x = 1,330,695.45 × 532,803.90
  4. Step 4: Simplify right side
    887,648.70x = 708,999,725,472.26
  5. Step 5: Solve for x
    x = 708,999,725,472.26/887,648.70
  6. Step 6: Final answer
    x = 798,739.10

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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.