Home / 1,215,247.74-1,822,872.21-316,687.20

Finding the Fourth Proportional to 1,215,247.74, 1,822,872.21 and 316,687.20

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Solution

The fourth proportional to 1,215,247.74, 1,822,872.21 and 316,687.20 is: 475,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,247.74 : 1,822,872.21 = 316,687.20 : x
  2. Step 2: Convert to fraction form
    1,215,247.74/1,822,872.21 = 316,687.20/x
  3. Step 3: Cross multiply
    1,215,247.74x = 1,822,872.21 × 316,687.20
  4. Step 4: Simplify right side
    1,215,247.74x = 577,280,289,900.73
  5. Step 5: Solve for x
    x = 577,280,289,900.73/1,215,247.74
  6. Step 6: Final answer
    x = 475,030.95

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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.