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Finding the Fourth Proportional to 488,051.55, 732,077.33 and 429,002.55

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Solution

The fourth proportional to 488,051.55, 732,077.33 and 429,002.55 is: 643,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,051.55 : 732,077.33 = 429,002.55 : x
  2. Step 2: Convert to fraction form
    488,051.55/732,077.33 = 429,002.55/x
  3. Step 3: Cross multiply
    488,051.55x = 732,077.33 × 429,002.55
  4. Step 4: Simplify right side
    488,051.55x = 314,063,039,222.18
  5. Step 5: Solve for x
    x = 314,063,039,222.18/488,051.55
  6. Step 6: Final answer
    x = 643,503.83

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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.