Home / 638,587.67-957,979.98-217,765.13

Finding the Fourth Proportional to 638,587.67, 957,979.98 and 217,765.13

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Solution

The fourth proportional to 638,587.67, 957,979.98 and 217,765.13 is: 326,681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,587.67 : 957,979.98 = 217,765.13 : x
  2. Step 2: Convert to fraction form
    638,587.67/957,979.98 = 217,765.13/x
  3. Step 3: Cross multiply
    638,587.67x = 957,979.98 × 217,765.13
  4. Step 4: Simplify right side
    638,587.67x = 208,614,630,092.20
  5. Step 5: Solve for x
    x = 208,614,630,092.20/638,587.67
  6. Step 6: Final answer
    x = 326,681.27

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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.