Home / 675,427.13-1,011,517.27-386,362.38

Finding the Fourth Proportional to 675,427.13, 1,011,517.27 and 386,362.38

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Solution

The fourth proportional to 675,427.13, 1,011,517.27 and 386,362.38 is: 578,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,427.13 : 1,011,517.27 = 386,362.38 : x
  2. Step 2: Convert to fraction form
    675,427.13/1,011,517.27 = 386,362.38/x
  3. Step 3: Cross multiply
    675,427.13x = 1,011,517.27 × 386,362.38
  4. Step 4: Simplify right side
    675,427.13x = 390,812,220,141.97
  5. Step 5: Solve for x
    x = 390,812,220,141.97/675,427.13
  6. Step 6: Final answer
    x = 578,614.93

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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.