Home / 674,028.11-930,159.20-368,108.75

Finding the Fourth Proportional to 674,028.11, 930,159.20 and 368,108.75

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Solution

The fourth proportional to 674,028.11, 930,159.20 and 368,108.75 is: 507,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,028.11 : 930,159.20 = 368,108.75 : x
  2. Step 2: Convert to fraction form
    674,028.11/930,159.20 = 368,108.75/x
  3. Step 3: Cross multiply
    674,028.11x = 930,159.20 × 368,108.75
  4. Step 4: Simplify right side
    674,028.11x = 342,399,740,413
  5. Step 5: Solve for x
    x = 342,399,740,413/674,028.11
  6. Step 6: Final answer
    x = 507,990.30

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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.