Home / 555,749.71-766,979.62-314,082.43

Finding the Fourth Proportional to 555,749.71, 766,979.62 and 314,082.43

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Solution

The fourth proportional to 555,749.71, 766,979.62 and 314,082.43 is: 433,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,749.71 : 766,979.62 = 314,082.43 : x
  2. Step 2: Convert to fraction form
    555,749.71/766,979.62 = 314,082.43/x
  3. Step 3: Cross multiply
    555,749.71x = 766,979.62 × 314,082.43
  4. Step 4: Simplify right side
    555,749.71x = 240,894,820,107.42
  5. Step 5: Solve for x
    x = 240,894,820,107.42/555,749.71
  6. Step 6: Final answer
    x = 433,459.19

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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.