Home / 681,003.24-939,772.80-375,108.24

Finding the Fourth Proportional to 681,003.24, 939,772.80 and 375,108.24

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Solution

The fourth proportional to 681,003.24, 939,772.80 and 375,108.24 is: 517,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,003.24 : 939,772.80 = 375,108.24 : x
  2. Step 2: Convert to fraction form
    681,003.24/939,772.80 = 375,108.24/x
  3. Step 3: Cross multiply
    681,003.24x = 939,772.80 × 375,108.24
  4. Step 4: Simplify right side
    681,003.24x = 352,516,521,007.87
  5. Step 5: Solve for x
    x = 352,516,521,007.87/681,003.24
  6. Step 6: Final answer
    x = 517,642.94

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1.5x scale

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.