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Finding the Fourth Proportional to 488,680.80, 732,583.80 and 189,061.80

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Solution

The fourth proportional to 488,680.80, 732,583.80 and 189,061.80 is: 283,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,680.80 : 732,583.80 = 189,061.80 : x
  2. Step 2: Convert to fraction form
    488,680.80/732,583.80 = 189,061.80/x
  3. Step 3: Cross multiply
    488,680.80x = 732,583.80 × 189,061.80
  4. Step 4: Simplify right side
    488,680.80x = 138,503,611,878.84
  5. Step 5: Solve for x
    x = 138,503,611,878.84/488,680.80
  6. Step 6: Final answer
    x = 283,423.48

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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.