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Finding the Fourth Proportional to 478,543.63, 717,940.05 and 179,047.63

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Solution

The fourth proportional to 478,543.63, 717,940.05 and 179,047.63 is: 268,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,543.63 : 717,940.05 = 179,047.63 : x
  2. Step 2: Convert to fraction form
    478,543.63/717,940.05 = 179,047.63/x
  3. Step 3: Cross multiply
    478,543.63x = 717,940.05 × 179,047.63
  4. Step 4: Simplify right side
    478,543.63x = 128,545,464,434.58
  5. Step 5: Solve for x
    x = 128,545,464,434.58/478,543.63
  6. Step 6: Final answer
    x = 268,618.07

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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.