Home / 691,124.78-1,035,872.92-311,601.17

Finding the Fourth Proportional to 691,124.78, 1,035,872.92 and 311,601.17

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Solution

The fourth proportional to 691,124.78, 1,035,872.92 and 311,601.17 is: 467,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,124.78 : 1,035,872.92 = 311,601.17 : x
  2. Step 2: Convert to fraction form
    691,124.78/1,035,872.92 = 311,601.17/x
  3. Step 3: Cross multiply
    691,124.78x = 1,035,872.92 × 311,601.17
  4. Step 4: Simplify right side
    691,124.78x = 322,779,207,105.95
  5. Step 5: Solve for x
    x = 322,779,207,105.95/691,124.78
  6. Step 6: Final answer
    x = 467,034.64

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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.