Home / 656,132.25-905,462.55-354,326.25

Finding the Fourth Proportional to 656,132.25, 905,462.55 and 354,326.25

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Solution

The fourth proportional to 656,132.25, 905,462.55 and 354,326.25 is: 488,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,132.25 : 905,462.55 = 354,326.25 : x
  2. Step 2: Convert to fraction form
    656,132.25/905,462.55 = 354,326.25/x
  3. Step 3: Cross multiply
    656,132.25x = 905,462.55 × 354,326.25
  4. Step 4: Simplify right side
    656,132.25x = 320,829,149,856.94
  5. Step 5: Solve for x
    x = 320,829,149,856.94/656,132.25
  6. Step 6: Final answer
    x = 488,970.25

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Double scale
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Similar ratio
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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.