Home / 710,849.28-980,998.38-388,581.24

Finding the Fourth Proportional to 710,849.28, 980,998.38 and 388,581.24

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Solution

The fourth proportional to 710,849.28, 980,998.38 and 388,581.24 is: 536,256.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,849.28 : 980,998.38 = 388,581.24 : x
  2. Step 2: Convert to fraction form
    710,849.28/980,998.38 = 388,581.24/x
  3. Step 3: Cross multiply
    710,849.28x = 980,998.38 × 388,581.24
  4. Step 4: Simplify right side
    710,849.28x = 381,197,566,938.39
  5. Step 5: Solve for x
    x = 381,197,566,938.39/710,849.28
  6. Step 6: Final answer
    x = 536,256.53

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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.