Home / 681,062.16-939,872.07-375,139.65

Finding the Fourth Proportional to 681,062.16, 939,872.07 and 375,139.65

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Solution

The fourth proportional to 681,062.16, 939,872.07 and 375,139.65 is: 517,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,062.16 : 939,872.07 = 375,139.65 : x
  2. Step 2: Convert to fraction form
    681,062.16/939,872.07 = 375,139.65/x
  3. Step 3: Cross multiply
    681,062.16x = 939,872.07 × 375,139.65
  4. Step 4: Simplify right side
    681,062.16x = 352,583,279,384.58
  5. Step 5: Solve for x
    x = 352,583,279,384.58/681,062.16
  6. Step 6: Final answer
    x = 517,696.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.