Home / 579,551.86-799,769.66-321,387.15

Finding the Fourth Proportional to 579,551.86, 799,769.66 and 321,387.15

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Solution

The fourth proportional to 579,551.86, 799,769.66 and 321,387.15 is: 443,507.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,551.86 : 799,769.66 = 321,387.15 : x
  2. Step 2: Convert to fraction form
    579,551.86/799,769.66 = 321,387.15/x
  3. Step 3: Cross multiply
    579,551.86x = 799,769.66 × 321,387.15
  4. Step 4: Simplify right side
    579,551.86x = 257,035,690,076.93
  5. Step 5: Solve for x
    x = 257,035,690,076.93/579,551.86
  6. Step 6: Final answer
    x = 443,507.66

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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.