Home / 676,543.79-1,014,082.13-338,770.15

Finding the Fourth Proportional to 676,543.79, 1,014,082.13 and 338,770.15

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Solution

The fourth proportional to 676,543.79, 1,014,082.13 and 338,770.15 is: 507,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,543.79 : 1,014,082.13 = 338,770.15 : x
  2. Step 2: Convert to fraction form
    676,543.79/1,014,082.13 = 338,770.15/x
  3. Step 3: Cross multiply
    676,543.79x = 1,014,082.13 × 338,770.15
  4. Step 4: Simplify right side
    676,543.79x = 343,540,753,604.14
  5. Step 5: Solve for x
    x = 343,540,753,604.14/676,543.79
  6. Step 6: Final answer
    x = 507,787.90

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Double scale
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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.