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Finding the Fourth Proportional to 425,547.79, 638,197.13 and 350,481.75

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Solution

The fourth proportional to 425,547.79, 638,197.13 and 350,481.75 is: 525,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,547.79 : 638,197.13 = 350,481.75 : x
  2. Step 2: Convert to fraction form
    425,547.79/638,197.13 = 350,481.75/x
  3. Step 3: Cross multiply
    425,547.79x = 638,197.13 × 350,481.75
  4. Step 4: Simplify right side
    425,547.79x = 223,676,449,040.20
  5. Step 5: Solve for x
    x = 223,676,449,040.20/425,547.79
  6. Step 6: Final answer
    x = 525,620.04

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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.