Home / 2,672,082.20-4,008,123.30-778,885.40

Finding the Fourth Proportional to 2,672,082.20, 4,008,123.30 and 778,885.40

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Solution

The fourth proportional to 2,672,082.20, 4,008,123.30 and 778,885.40 is: 1,168,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,082.20 : 4,008,123.30 = 778,885.40 : x
  2. Step 2: Convert to fraction form
    2,672,082.20/4,008,123.30 = 778,885.40/x
  3. Step 3: Cross multiply
    2,672,082.20x = 4,008,123.30 × 778,885.40
  4. Step 4: Simplify right side
    2,672,082.20x = 3,121,868,719,769.82
  5. Step 5: Solve for x
    x = 3,121,868,719,769.82/2,672,082.20
  6. Step 6: Final answer
    x = 1,168,328.10

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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.