Home / 1,145,902.80-1,717,687.80-672,344.40

Finding the Fourth Proportional to 1,145,902.80, 1,717,687.80 and 672,344.40

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Solution

The fourth proportional to 1,145,902.80, 1,717,687.80 and 672,344.40 is: 1,007,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,902.80 : 1,717,687.80 = 672,344.40 : x
  2. Step 2: Convert to fraction form
    1,145,902.80/1,717,687.80 = 672,344.40/x
  3. Step 3: Cross multiply
    1,145,902.80x = 1,717,687.80 × 672,344.40
  4. Step 4: Simplify right side
    1,145,902.80x = 1,154,877,773,278.32
  5. Step 5: Solve for x
    x = 1,154,877,773,278.32/1,145,902.80
  6. Step 6: Final answer
    x = 1,007,832.23

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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.