Home / 714,554.79-1,071,016.82-287,817.47

Finding the Fourth Proportional to 714,554.79, 1,071,016.82 and 287,817.47

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Solution

The fourth proportional to 714,554.79, 1,071,016.82 and 287,817.47 is: 431,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,554.79 : 1,071,016.82 = 287,817.47 : x
  2. Step 2: Convert to fraction form
    714,554.79/1,071,016.82 = 287,817.47/x
  3. Step 3: Cross multiply
    714,554.79x = 1,071,016.82 × 287,817.47
  4. Step 4: Simplify right side
    714,554.79x = 308,257,350,020.76
  5. Step 5: Solve for x
    x = 308,257,350,020.76/714,554.79
  6. Step 6: Final answer
    x = 431,397.78

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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.