Home / 754,864.80-1,131,908.40-281,306.40

Finding the Fourth Proportional to 754,864.80, 1,131,908.40 and 281,306.40

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Solution

The fourth proportional to 754,864.80, 1,131,908.40 and 281,306.40 is: 421,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,864.80 : 1,131,908.40 = 281,306.40 : x
  2. Step 2: Convert to fraction form
    754,864.80/1,131,908.40 = 281,306.40/x
  3. Step 3: Cross multiply
    754,864.80x = 1,131,908.40 × 281,306.40
  4. Step 4: Simplify right side
    754,864.80x = 318,413,077,133.76
  5. Step 5: Solve for x
    x = 318,413,077,133.76/754,864.80
  6. Step 6: Final answer
    x = 421,814.71

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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.