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Finding the Fourth Proportional to 478,542.63, 717,938.55 and 179,046.63

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Solution

The fourth proportional to 478,542.63, 717,938.55 and 179,046.63 is: 268,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,542.63 : 717,938.55 = 179,046.63 : x
  2. Step 2: Convert to fraction form
    478,542.63/717,938.55 = 179,046.63/x
  3. Step 3: Cross multiply
    478,542.63x = 717,938.55 × 179,046.63
  4. Step 4: Simplify right side
    478,542.63x = 128,544,477,924.59
  5. Step 5: Solve for x
    x = 128,544,477,924.59/478,542.63
  6. Step 6: Final answer
    x = 268,616.57

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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.