Home / 763,507.67-1,144,474.19-343,078.79

Finding the Fourth Proportional to 763,507.67, 1,144,474.19 and 343,078.79

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Solution

The fourth proportional to 763,507.67, 1,144,474.19 and 343,078.79 is: 514,264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,507.67 : 1,144,474.19 = 343,078.79 : x
  2. Step 2: Convert to fraction form
    763,507.67/1,144,474.19 = 343,078.79/x
  3. Step 3: Cross multiply
    763,507.67x = 1,144,474.19 × 343,078.79
  4. Step 4: Simplify right side
    763,507.67x = 392,644,819,612.97
  5. Step 5: Solve for x
    x = 392,644,819,612.97/763,507.67
  6. Step 6: Final answer
    x = 514,264.41

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1.5x scale

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.