Home / 646,918.66-892,753.92-356,540.76

Finding the Fourth Proportional to 646,918.66, 892,753.92 and 356,540.76

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Solution

The fourth proportional to 646,918.66, 892,753.92 and 356,540.76 is: 492,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,918.66 : 892,753.92 = 356,540.76 : x
  2. Step 2: Convert to fraction form
    646,918.66/892,753.92 = 356,540.76/x
  3. Step 3: Cross multiply
    646,918.66x = 892,753.92 × 356,540.76
  4. Step 4: Simplify right side
    646,918.66x = 318,303,161,129.78
  5. Step 5: Solve for x
    x = 318,303,161,129.78/646,918.66
  6. Step 6: Final answer
    x = 492,029.65

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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.