Home / 1,127,159.62-1,690,764.03-678,256.00

Finding the Fourth Proportional to 1,127,159.62, 1,690,764.03 and 678,256.00

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Solution

The fourth proportional to 1,127,159.62, 1,690,764.03 and 678,256.00 is: 1,017,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,159.62 : 1,690,764.03 = 678,256.00 : x
  2. Step 2: Convert to fraction form
    1,127,159.62/1,690,764.03 = 678,256.00/x
  3. Step 3: Cross multiply
    1,127,159.62x = 1,690,764.03 × 678,256.00
  4. Step 4: Simplify right side
    1,127,159.62x = 1,146,770,843,704.77
  5. Step 5: Solve for x
    x = 1,146,770,843,704.77/1,127,159.62
  6. Step 6: Final answer
    x = 1,017,398.80

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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.