Home / 755,715.38-1,134,040.22-306,440.15

Finding the Fourth Proportional to 755,715.38, 1,134,040.22 and 306,440.15

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Solution

The fourth proportional to 755,715.38, 1,134,040.22 and 306,440.15 is: 459,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,715.38 : 1,134,040.22 = 306,440.15 : x
  2. Step 2: Convert to fraction form
    755,715.38/1,134,040.22 = 306,440.15/x
  3. Step 3: Cross multiply
    755,715.38x = 1,134,040.22 × 306,440.15
  4. Step 4: Simplify right side
    755,715.38x = 347,515,449,931.45
  5. Step 5: Solve for x
    x = 347,515,449,931.45/755,715.38
  6. Step 6: Final answer
    x = 459,849.65

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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.