Home / 1,239,897.60-1,859,385.60-491,788.80

Finding the Fourth Proportional to 1,239,897.60, 1,859,385.60 and 491,788.80

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Solution

The fourth proportional to 1,239,897.60, 1,859,385.60 and 491,788.80 is: 737,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,897.60 : 1,859,385.60 = 491,788.80 : x
  2. Step 2: Convert to fraction form
    1,239,897.60/1,859,385.60 = 491,788.80/x
  3. Step 3: Cross multiply
    1,239,897.60x = 1,859,385.60 × 491,788.80
  4. Step 4: Simplify right side
    1,239,897.60x = 914,425,012,961.28
  5. Step 5: Solve for x
    x = 914,425,012,961.28/1,239,897.60
  6. Step 6: Final answer
    x = 737,500.43

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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.