Home / 754,531.40-1,131,787.08-185,919.30

Finding the Fourth Proportional to 754,531.40, 1,131,787.08 and 185,919.30

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Solution

The fourth proportional to 754,531.40, 1,131,787.08 and 185,919.30 is: 278,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,531.40 : 1,131,787.08 = 185,919.30 : x
  2. Step 2: Convert to fraction form
    754,531.40/1,131,787.08 = 185,919.30/x
  3. Step 3: Cross multiply
    754,531.40x = 1,131,787.08 × 185,919.30
  4. Step 4: Simplify right side
    754,531.40x = 210,421,061,662.64
  5. Step 5: Solve for x
    x = 210,421,061,662.64/754,531.40
  6. Step 6: Final answer
    x = 278,876.48

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1.5x scale

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.