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Finding the Fourth Proportional to 454,276.70, 626,901.90 and 263,400.80

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Solution

The fourth proportional to 454,276.70, 626,901.90 and 263,400.80 is: 363,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,276.70 : 626,901.90 = 263,400.80 : x
  2. Step 2: Convert to fraction form
    454,276.70/626,901.90 = 263,400.80/x
  3. Step 3: Cross multiply
    454,276.70x = 626,901.90 × 263,400.80
  4. Step 4: Simplify right side
    454,276.70x = 165,126,461,981.52
  5. Step 5: Solve for x
    x = 165,126,461,981.52/454,276.70
  6. Step 6: Final answer
    x = 363,493.14

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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.