Home / 525,696.75-725,460.90-283,979.28

Finding the Fourth Proportional to 525,696.75, 725,460.90 and 283,979.28

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Solution

The fourth proportional to 525,696.75, 725,460.90 and 283,979.28 is: 391,891.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,696.75 : 725,460.90 = 283,979.28 : x
  2. Step 2: Convert to fraction form
    525,696.75/725,460.90 = 283,979.28/x
  3. Step 3: Cross multiply
    525,696.75x = 725,460.90 × 283,979.28
  4. Step 4: Simplify right side
    525,696.75x = 206,015,864,050.15
  5. Step 5: Solve for x
    x = 206,015,864,050.15/525,696.75
  6. Step 6: Final answer
    x = 391,891.07

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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.