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Finding the Fourth Proportional to 527,797.80, 791,696.70 and 487,247.40

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Solution

The fourth proportional to 527,797.80, 791,696.70 and 487,247.40 is: 730,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,797.80 : 791,696.70 = 487,247.40 : x
  2. Step 2: Convert to fraction form
    527,797.80/791,696.70 = 487,247.40/x
  3. Step 3: Cross multiply
    527,797.80x = 791,696.70 × 487,247.40
  4. Step 4: Simplify right side
    527,797.80x = 385,752,158,663.58
  5. Step 5: Solve for x
    x = 385,752,158,663.58/527,797.80
  6. Step 6: Final answer
    x = 730,871.10

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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.