Home / 1,326,726.80-1,989,652.80-485,169.20

Finding the Fourth Proportional to 1,326,726.80, 1,989,652.80 and 485,169.20

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Solution

The fourth proportional to 1,326,726.80, 1,989,652.80 and 485,169.20 is: 727,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,726.80 : 1,989,652.80 = 485,169.20 : x
  2. Step 2: Convert to fraction form
    1,326,726.80/1,989,652.80 = 485,169.20/x
  3. Step 3: Cross multiply
    1,326,726.80x = 1,989,652.80 × 485,169.20
  4. Step 4: Simplify right side
    1,326,726.80x = 965,318,257,253.76
  5. Step 5: Solve for x
    x = 965,318,257,253.76/1,326,726.80
  6. Step 6: Final answer
    x = 727,593.85

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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.