Home / 1,487,788.20-2,231,682.30-890,591.40

Finding the Fourth Proportional to 1,487,788.20, 2,231,682.30 and 890,591.40

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Solution

The fourth proportional to 1,487,788.20, 2,231,682.30 and 890,591.40 is: 1,335,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,788.20 : 2,231,682.30 = 890,591.40 : x
  2. Step 2: Convert to fraction form
    1,487,788.20/2,231,682.30 = 890,591.40/x
  3. Step 3: Cross multiply
    1,487,788.20x = 2,231,682.30 × 890,591.40
  4. Step 4: Simplify right side
    1,487,788.20x = 1,987,517,063,912.22
  5. Step 5: Solve for x
    x = 1,987,517,063,912.22/1,487,788.20
  6. Step 6: Final answer
    x = 1,335,887.10

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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.