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Finding the Fourth Proportional to 478,594.40, 717,891.60 and 239,445.95

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Solution

The fourth proportional to 478,594.40, 717,891.60 and 239,445.95 is: 359,168.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,594.40 : 717,891.60 = 239,445.95 : x
  2. Step 2: Convert to fraction form
    478,594.40/717,891.60 = 239,445.95/x
  3. Step 3: Cross multiply
    478,594.40x = 717,891.60 × 239,445.95
  4. Step 4: Simplify right side
    478,594.40x = 171,896,236,159.02
  5. Step 5: Solve for x
    x = 171,896,236,159.02/478,594.40
  6. Step 6: Final answer
    x = 359,168.93

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Similar ratio
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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.