Home / 403,650.12-556,995.32-248,576.78

Finding the Fourth Proportional to 403,650.12, 556,995.32 and 248,576.78

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Solution

The fourth proportional to 403,650.12, 556,995.32 and 248,576.78 is: 343,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,650.12 : 556,995.32 = 248,576.78 : x
  2. Step 2: Convert to fraction form
    403,650.12/556,995.32 = 248,576.78/x
  3. Step 3: Cross multiply
    403,650.12x = 556,995.32 × 248,576.78
  4. Step 4: Simplify right side
    403,650.12x = 138,456,103,120.67
  5. Step 5: Solve for x
    x = 138,456,103,120.67/403,650.12
  6. Step 6: Final answer
    x = 343,010.19

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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.