Home / 1,209,932.40-1,815,773.40-676,887.60

Finding the Fourth Proportional to 1,209,932.40, 1,815,773.40 and 676,887.60

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Solution

The fourth proportional to 1,209,932.40, 1,815,773.40 and 676,887.60 is: 1,015,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,932.40 : 1,815,773.40 = 676,887.60 : x
  2. Step 2: Convert to fraction form
    1,209,932.40/1,815,773.40 = 676,887.60/x
  3. Step 3: Cross multiply
    1,209,932.40x = 1,815,773.40 × 676,887.60
  4. Step 4: Simplify right side
    1,209,932.40x = 1,229,074,498,869.84
  5. Step 5: Solve for x
    x = 1,229,074,498,869.84/1,209,932.40
  6. Step 6: Final answer
    x = 1,015,820.80

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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.