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Finding the Fourth Proportional to 478,552.80, 717,829.20 and 329,253.60

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Solution

The fourth proportional to 478,552.80, 717,829.20 and 329,253.60 is: 493,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,552.80 : 717,829.20 = 329,253.60 : x
  2. Step 2: Convert to fraction form
    478,552.80/717,829.20 = 329,253.60/x
  3. Step 3: Cross multiply
    478,552.80x = 717,829.20 × 329,253.60
  4. Step 4: Simplify right side
    478,552.80x = 236,347,848,285.12
  5. Step 5: Solve for x
    x = 236,347,848,285.12/478,552.80
  6. Step 6: Final answer
    x = 493,880.40

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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.