Home / 2,819,412.72-4,229,082.40-689,515.28

Finding the Fourth Proportional to 2,819,412.72, 4,229,082.40 and 689,515.28

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Solution

The fourth proportional to 2,819,412.72, 4,229,082.40 and 689,515.28 is: 1,034,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,412.72 : 4,229,082.40 = 689,515.28 : x
  2. Step 2: Convert to fraction form
    2,819,412.72/4,229,082.40 = 689,515.28/x
  3. Step 3: Cross multiply
    2,819,412.72x = 4,229,082.40 × 689,515.28
  4. Step 4: Simplify right side
    2,819,412.72x = 2,916,016,935,179.07
  5. Step 5: Solve for x
    x = 2,916,016,935,179.07/2,819,412.72
  6. Step 6: Final answer
    x = 1,034,263.95

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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.