Home / 938,759.46-1,407,517.02-339,642.65

Finding the Fourth Proportional to 938,759.46, 1,407,517.02 and 339,642.65

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Solution

The fourth proportional to 938,759.46, 1,407,517.02 and 339,642.65 is: 509,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,759.46 : 1,407,517.02 = 339,642.65 : x
  2. Step 2: Convert to fraction form
    938,759.46/1,407,517.02 = 339,642.65/x
  3. Step 3: Cross multiply
    938,759.46x = 1,407,517.02 × 339,642.65
  4. Step 4: Simplify right side
    938,759.46x = 478,052,814,111.70
  5. Step 5: Solve for x
    x = 478,052,814,111.70/938,759.46
  6. Step 6: Final answer
    x = 509,238.88

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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.