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Finding the Fourth Proportional to 521,880.58, 782,151.78 and 454,130.98

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Solution

The fourth proportional to 521,880.58, 782,151.78 and 454,130.98 is: 680,614.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,880.58 : 782,151.78 = 454,130.98 : x
  2. Step 2: Convert to fraction form
    521,880.58/782,151.78 = 454,130.98/x
  3. Step 3: Cross multiply
    521,880.58x = 782,151.78 × 454,130.98
  4. Step 4: Simplify right side
    521,880.58x = 355,199,354,360.14
  5. Step 5: Solve for x
    x = 355,199,354,360.14/521,880.58
  6. Step 6: Final answer
    x = 680,614.24

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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.