Home / 763,260.11-1,143,393.17-442,738.59

Finding the Fourth Proportional to 763,260.11, 1,143,393.17 and 442,738.59

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Solution

The fourth proportional to 763,260.11, 1,143,393.17 and 442,738.59 is: 663,239.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,260.11 : 1,143,393.17 = 442,738.59 : x
  2. Step 2: Convert to fraction form
    763,260.11/1,143,393.17 = 442,738.59/x
  3. Step 3: Cross multiply
    763,260.11x = 1,143,393.17 × 442,738.59
  4. Step 4: Simplify right side
    763,260.11x = 506,224,277,687.74
  5. Step 5: Solve for x
    x = 506,224,277,687.74/763,260.11
  6. Step 6: Final answer
    x = 663,239.54

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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.