Home / 1,233.71-1,849.95-411.70

Finding the Fourth Proportional to 1,233.71, 1,849.95 and 411.70

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Solution

The fourth proportional to 1,233.71, 1,849.95 and 411.70 is: 617.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.71 : 1,849.95 = 411.70 : x
  2. Step 2: Convert to fraction form
    1,233.71/1,849.95 = 411.70/x
  3. Step 3: Cross multiply
    1,233.71x = 1,849.95 × 411.70
  4. Step 4: Simplify right side
    1,233.71x = 761,624.42
  5. Step 5: Solve for x
    x = 761,624.42/1,233.71
  6. Step 6: Final answer
    x = 617.34

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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.