Home / 627,381.64-940,543.29-272,128.06

Finding the Fourth Proportional to 627,381.64, 940,543.29 and 272,128.06

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Solution

The fourth proportional to 627,381.64, 940,543.29 and 272,128.06 is: 407,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,381.64 : 940,543.29 = 272,128.06 : x
  2. Step 2: Convert to fraction form
    627,381.64/940,543.29 = 272,128.06/x
  3. Step 3: Cross multiply
    627,381.64x = 940,543.29 × 272,128.06
  4. Step 4: Simplify right side
    627,381.64x = 255,948,220,853.72
  5. Step 5: Solve for x
    x = 255,948,220,853.72/627,381.64
  6. Step 6: Final answer
    x = 407,962.56

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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.