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Finding the Fourth Proportional to 527,506.88, 788,999.67 and 489,217.32

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Solution

The fourth proportional to 527,506.88, 788,999.67 and 489,217.32 is: 731,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,506.88 : 788,999.67 = 489,217.32 : x
  2. Step 2: Convert to fraction form
    527,506.88/788,999.67 = 489,217.32/x
  3. Step 3: Cross multiply
    527,506.88x = 788,999.67 × 489,217.32
  4. Step 4: Simplify right side
    527,506.88x = 385,992,304,038.28
  5. Step 5: Solve for x
    x = 385,992,304,038.28/527,506.88
  6. Step 6: Final answer
    x = 731,729.43

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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.