Home / 1,665,985.20-2,498,977.80-955,428.90

Finding the Fourth Proportional to 1,665,985.20, 2,498,977.80 and 955,428.90

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Solution

The fourth proportional to 1,665,985.20, 2,498,977.80 and 955,428.90 is: 1,433,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,985.20 : 2,498,977.80 = 955,428.90 : x
  2. Step 2: Convert to fraction form
    1,665,985.20/2,498,977.80 = 955,428.90/x
  3. Step 3: Cross multiply
    1,665,985.20x = 2,498,977.80 × 955,428.90
  4. Step 4: Simplify right side
    1,665,985.20x = 2,387,595,610,578.42
  5. Step 5: Solve for x
    x = 2,387,595,610,578.42/1,665,985.20
  6. Step 6: Final answer
    x = 1,433,143.35

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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.