Home / 753,862.53-1,040,340.66-409,705.28

Finding the Fourth Proportional to 753,862.53, 1,040,340.66 and 409,705.28

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Solution

The fourth proportional to 753,862.53, 1,040,340.66 and 409,705.28 is: 565,398.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,862.53 : 1,040,340.66 = 409,705.28 : x
  2. Step 2: Convert to fraction form
    753,862.53/1,040,340.66 = 409,705.28/x
  3. Step 3: Cross multiply
    753,862.53x = 1,040,340.66 × 409,705.28
  4. Step 4: Simplify right side
    753,862.53x = 426,233,056,198.98
  5. Step 5: Solve for x
    x = 426,233,056,198.98/753,862.53
  6. Step 6: Final answer
    x = 565,398.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.