Home / 486,139.12-670,872.04-268,347.87

Finding the Fourth Proportional to 486,139.12, 670,872.04 and 268,347.87

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Solution

The fourth proportional to 486,139.12, 670,872.04 and 268,347.87 is: 370,320.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,139.12 : 670,872.04 = 268,347.87 : x
  2. Step 2: Convert to fraction form
    486,139.12/670,872.04 = 268,347.87/x
  3. Step 3: Cross multiply
    486,139.12x = 670,872.04 × 268,347.87
  4. Step 4: Simplify right side
    486,139.12x = 180,027,082,305.69
  5. Step 5: Solve for x
    x = 180,027,082,305.69/486,139.12
  6. Step 6: Final answer
    x = 370,320.09

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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.