Home / 861,292.72-1,188,575.28-479,313.04

Finding the Fourth Proportional to 861,292.72, 1,188,575.28 and 479,313.04

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Solution

The fourth proportional to 861,292.72, 1,188,575.28 and 479,313.04 is: 661,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,292.72 : 1,188,575.28 = 479,313.04 : x
  2. Step 2: Convert to fraction form
    861,292.72/1,188,575.28 = 479,313.04/x
  3. Step 3: Cross multiply
    861,292.72x = 1,188,575.28 × 479,313.04
  4. Step 4: Simplify right side
    861,292.72x = 569,699,630,725.65
  5. Step 5: Solve for x
    x = 569,699,630,725.65/861,292.72
  6. Step 6: Final answer
    x = 661,447.17

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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.