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Finding the Fourth Proportional to 452,859.20, 679,353.60 and 137,340.80

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Solution

The fourth proportional to 452,859.20, 679,353.60 and 137,340.80 is: 206,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,859.20 : 679,353.60 = 137,340.80 : x
  2. Step 2: Convert to fraction form
    452,859.20/679,353.60 = 137,340.80/x
  3. Step 3: Cross multiply
    452,859.20x = 679,353.60 × 137,340.80
  4. Step 4: Simplify right side
    452,859.20x = 93,302,966,906.88
  5. Step 5: Solve for x
    x = 93,302,966,906.88/452,859.20
  6. Step 6: Final answer
    x = 206,030.85

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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.