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Finding the Fourth Proportional to 488,307.80, 732,352.35 and 321,002.30

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Solution

The fourth proportional to 488,307.80, 732,352.35 and 321,002.30 is: 481,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,307.80 : 732,352.35 = 321,002.30 : x
  2. Step 2: Convert to fraction form
    488,307.80/732,352.35 = 321,002.30/x
  3. Step 3: Cross multiply
    488,307.80x = 732,352.35 × 321,002.30
  4. Step 4: Simplify right side
    488,307.80x = 235,086,788,760.41
  5. Step 5: Solve for x
    x = 235,086,788,760.41/488,307.80
  6. Step 6: Final answer
    x = 481,431.57

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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.