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Finding the Fourth Proportional to 478,625.52, 660,503.36 and 260,834.28

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Solution

The fourth proportional to 478,625.52, 660,503.36 and 260,834.28 is: 359,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,625.52 : 660,503.36 = 260,834.28 : x
  2. Step 2: Convert to fraction form
    478,625.52/660,503.36 = 260,834.28/x
  3. Step 3: Cross multiply
    478,625.52x = 660,503.36 × 260,834.28
  4. Step 4: Simplify right side
    478,625.52x = 172,281,916,518.38
  5. Step 5: Solve for x
    x = 172,281,916,518.38/478,625.52
  6. Step 6: Final answer
    x = 359,951.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.