Home / 1,119,719.90-1,679,579.85-409,819.70

Finding the Fourth Proportional to 1,119,719.90, 1,679,579.85 and 409,819.70

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Solution

The fourth proportional to 1,119,719.90, 1,679,579.85 and 409,819.70 is: 614,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,719.90 : 1,679,579.85 = 409,819.70 : x
  2. Step 2: Convert to fraction form
    1,119,719.90/1,679,579.85 = 409,819.70/x
  3. Step 3: Cross multiply
    1,119,719.90x = 1,679,579.85 × 409,819.70
  4. Step 4: Simplify right side
    1,119,719.90x = 688,324,910,253.05
  5. Step 5: Solve for x
    x = 688,324,910,253.05/1,119,719.90
  6. Step 6: Final answer
    x = 614,729.55

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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.