Home / 713,849.31-1,071,191.97-287,318.70

Finding the Fourth Proportional to 713,849.31, 1,071,191.97 and 287,318.70

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Solution

The fourth proportional to 713,849.31, 1,071,191.97 and 287,318.70 is: 431,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,849.31 : 1,071,191.97 = 287,318.70 : x
  2. Step 2: Convert to fraction form
    713,849.31/1,071,191.97 = 287,318.70/x
  3. Step 3: Cross multiply
    713,849.31x = 1,071,191.97 × 287,318.70
  4. Step 4: Simplify right side
    713,849.31x = 307,773,484,270.84
  5. Step 5: Solve for x
    x = 307,773,484,270.84/713,849.31
  6. Step 6: Final answer
    x = 431,146.29

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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.