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Finding the Fourth Proportional to 502,477.20, 753,478.20 and 292,179.60

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Solution

The fourth proportional to 502,477.20, 753,478.20 and 292,179.60 is: 438,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,477.20 : 753,478.20 = 292,179.60 : x
  2. Step 2: Convert to fraction form
    502,477.20/753,478.20 = 292,179.60/x
  3. Step 3: Cross multiply
    502,477.20x = 753,478.20 × 292,179.60
  4. Step 4: Simplify right side
    502,477.20x = 220,150,959,084.72
  5. Step 5: Solve for x
    x = 220,150,959,084.72/502,477.20
  6. Step 6: Final answer
    x = 438,131.24

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1.5x scale

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.