Home / 1,087,623.60-1,631,435.40-807,687.60

Finding the Fourth Proportional to 1,087,623.60, 1,631,435.40 and 807,687.60

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Solution

The fourth proportional to 1,087,623.60, 1,631,435.40 and 807,687.60 is: 1,211,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,623.60 : 1,631,435.40 = 807,687.60 : x
  2. Step 2: Convert to fraction form
    1,087,623.60/1,631,435.40 = 807,687.60/x
  3. Step 3: Cross multiply
    1,087,623.60x = 1,631,435.40 × 807,687.60
  4. Step 4: Simplify right side
    1,087,623.60x = 1,317,690,142,781.04
  5. Step 5: Solve for x
    x = 1,317,690,142,781.04/1,087,623.60
  6. Step 6: Final answer
    x = 1,211,531.40

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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.