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Finding the Fourth Proportional to 488,368.80, 732,553.20 and 440,157.60

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Solution

The fourth proportional to 488,368.80, 732,553.20 and 440,157.60 is: 660,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,368.80 : 732,553.20 = 440,157.60 : x
  2. Step 2: Convert to fraction form
    488,368.80/732,553.20 = 440,157.60/x
  3. Step 3: Cross multiply
    488,368.80x = 732,553.20 × 440,157.60
  4. Step 4: Simplify right side
    488,368.80x = 322,438,858,384.32
  5. Step 5: Solve for x
    x = 322,438,858,384.32/488,368.80
  6. Step 6: Final answer
    x = 660,236.40

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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.