Home / 861,345.25-1,188,656.44-479,462.24

Finding the Fourth Proportional to 861,345.25, 1,188,656.44 and 479,462.24

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Solution

The fourth proportional to 861,345.25, 1,188,656.44 and 479,462.24 is: 661,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,345.25 : 1,188,656.44 = 479,462.24 : x
  2. Step 2: Convert to fraction form
    861,345.25/1,188,656.44 = 479,462.24/x
  3. Step 3: Cross multiply
    861,345.25x = 1,188,656.44 × 479,462.24
  4. Step 4: Simplify right side
    861,345.25x = 569,915,881,436.97
  5. Step 5: Solve for x
    x = 569,915,881,436.97/861,345.25
  6. Step 6: Final answer
    x = 661,657.89

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Double scale
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1.5x scale

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.