Home / 646,617.30-892,324.02-356,223.12

Finding the Fourth Proportional to 646,617.30, 892,324.02 and 356,223.12

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Solution

The fourth proportional to 646,617.30, 892,324.02 and 356,223.12 is: 491,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,617.30 : 892,324.02 = 356,223.12 : x
  2. Step 2: Convert to fraction form
    646,617.30/892,324.02 = 356,223.12/x
  3. Step 3: Cross multiply
    646,617.30x = 892,324.02 × 356,223.12
  4. Step 4: Simplify right side
    646,617.30x = 317,866,443,443.09
  5. Step 5: Solve for x
    x = 317,866,443,443.09/646,617.30
  6. Step 6: Final answer
    x = 491,583.57

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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.