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Finding the Fourth Proportional to 635,416.74, 953,343.81 and 398,482.02

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Solution

The fourth proportional to 635,416.74, 953,343.81 and 398,482.02 is: 597,860.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,416.74 : 953,343.81 = 398,482.02 : x
  2. Step 2: Convert to fraction form
    635,416.74/953,343.81 = 398,482.02/x
  3. Step 3: Cross multiply
    635,416.74x = 953,343.81 × 398,482.02
  4. Step 4: Simplify right side
    635,416.74x = 379,890,367,163.30
  5. Step 5: Solve for x
    x = 379,890,367,163.30/635,416.74
  6. Step 6: Final answer
    x = 597,860.18

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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.