Home / 627,381.48-940,543.08-272,128.02

Finding the Fourth Proportional to 627,381.48, 940,543.08 and 272,128.02

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Solution

The fourth proportional to 627,381.48, 940,543.08 and 272,128.02 is: 407,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,381.48 : 940,543.08 = 272,128.02 : x
  2. Step 2: Convert to fraction form
    627,381.48/940,543.08 = 272,128.02/x
  3. Step 3: Cross multiply
    627,381.48x = 940,543.08 × 272,128.02
  4. Step 4: Simplify right side
    627,381.48x = 255,948,126,085.10
  5. Step 5: Solve for x
    x = 255,948,126,085.10/627,381.48
  6. Step 6: Final answer
    x = 407,962.51

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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.