Home / 638,013.12-957,167.76-217,292.64

Finding the Fourth Proportional to 638,013.12, 957,167.76 and 217,292.64

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Solution

The fourth proportional to 638,013.12, 957,167.76 and 217,292.64 is: 325,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,013.12 : 957,167.76 = 217,292.64 : x
  2. Step 2: Convert to fraction form
    638,013.12/957,167.76 = 217,292.64/x
  3. Step 3: Cross multiply
    638,013.12x = 957,167.76 × 217,292.64
  4. Step 4: Simplify right side
    638,013.12x = 207,985,509,493.29
  5. Step 5: Solve for x
    x = 207,985,509,493.29/638,013.12
  6. Step 6: Final answer
    x = 325,989.39

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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.