Home / 988,279.40-1,482,419.10-977,781.80

Finding the Fourth Proportional to 988,279.40, 1,482,419.10 and 977,781.80

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Solution

The fourth proportional to 988,279.40, 1,482,419.10 and 977,781.80 is: 1,466,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,279.40 : 1,482,419.10 = 977,781.80 : x
  2. Step 2: Convert to fraction form
    988,279.40/1,482,419.10 = 977,781.80/x
  3. Step 3: Cross multiply
    988,279.40x = 1,482,419.10 × 977,781.80
  4. Step 4: Simplify right side
    988,279.40x = 1,449,482,415,952.38
  5. Step 5: Solve for x
    x = 1,449,482,415,952.38/988,279.40
  6. Step 6: Final answer
    x = 1,466,672.70

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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.