Home / 579,004.38-799,027.92-320,885.55

Finding the Fourth Proportional to 579,004.38, 799,027.92 and 320,885.55

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Solution

The fourth proportional to 579,004.38, 799,027.92 and 320,885.55 is: 442,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,004.38 : 799,027.92 = 320,885.55 : x
  2. Step 2: Convert to fraction form
    579,004.38/799,027.92 = 320,885.55/x
  3. Step 3: Cross multiply
    579,004.38x = 799,027.92 × 320,885.55
  4. Step 4: Simplify right side
    579,004.38x = 256,396,513,574.56
  5. Step 5: Solve for x
    x = 256,396,513,574.56/579,004.38
  6. Step 6: Final answer
    x = 442,823.10

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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.