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Finding the Fourth Proportional to 628,001.37, 866,963.66 and 425,125.53

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Solution

The fourth proportional to 628,001.37, 866,963.66 and 425,125.53 is: 586,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,001.37 : 866,963.66 = 425,125.53 : x
  2. Step 2: Convert to fraction form
    628,001.37/866,963.66 = 425,125.53/x
  3. Step 3: Cross multiply
    628,001.37x = 866,963.66 × 425,125.53
  4. Step 4: Simplify right side
    628,001.37x = 368,568,383,322.61
  5. Step 5: Solve for x
    x = 368,568,383,322.61/628,001.37
  6. Step 6: Final answer
    x = 586,891.05

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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.