Home / 931,445.38-1,397,126.13-324,661.55

Finding the Fourth Proportional to 931,445.38, 1,397,126.13 and 324,661.55

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Solution

The fourth proportional to 931,445.38, 1,397,126.13 and 324,661.55 is: 486,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,445.38 : 1,397,126.13 = 324,661.55 : x
  2. Step 2: Convert to fraction form
    931,445.38/1,397,126.13 = 324,661.55/x
  3. Step 3: Cross multiply
    931,445.38x = 1,397,126.13 × 324,661.55
  4. Step 4: Simplify right side
    931,445.38x = 453,593,127,925.67
  5. Step 5: Solve for x
    x = 453,593,127,925.67/931,445.38
  6. Step 6: Final answer
    x = 486,977.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.