Home / 1,643,839.20-2,466,147.60-521,908.20

Finding the Fourth Proportional to 1,643,839.20, 2,466,147.60 and 521,908.20

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Solution

The fourth proportional to 1,643,839.20, 2,466,147.60 and 521,908.20 is: 782,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,839.20 : 2,466,147.60 = 521,908.20 : x
  2. Step 2: Convert to fraction form
    1,643,839.20/2,466,147.60 = 521,908.20/x
  3. Step 3: Cross multiply
    1,643,839.20x = 2,466,147.60 × 521,908.20
  4. Step 4: Simplify right side
    1,643,839.20x = 1,287,102,654,850.32
  5. Step 5: Solve for x
    x = 1,287,102,654,850.32/1,643,839.20
  6. Step 6: Final answer
    x = 782,985.74

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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.