Home / 662,005.57-913,540.78-375,519.50

Finding the Fourth Proportional to 662,005.57, 913,540.78 and 375,519.50

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Solution

The fourth proportional to 662,005.57, 913,540.78 and 375,519.50 is: 518,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,005.57 : 913,540.78 = 375,519.50 : x
  2. Step 2: Convert to fraction form
    662,005.57/913,540.78 = 375,519.50/x
  3. Step 3: Cross multiply
    662,005.57x = 913,540.78 × 375,519.50
  4. Step 4: Simplify right side
    662,005.57x = 343,052,376,935.21
  5. Step 5: Solve for x
    x = 343,052,376,935.21/662,005.57
  6. Step 6: Final answer
    x = 518,201.65

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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.