Home / 403,798.80-557,219.34-231,680.28

Finding the Fourth Proportional to 403,798.80, 557,219.34 and 231,680.28

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Solution

The fourth proportional to 403,798.80, 557,219.34 and 231,680.28 is: 319,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,798.80 : 557,219.34 = 231,680.28 : x
  2. Step 2: Convert to fraction form
    403,798.80/557,219.34 = 231,680.28/x
  3. Step 3: Cross multiply
    403,798.80x = 557,219.34 × 231,680.28
  4. Step 4: Simplify right side
    403,798.80x = 129,096,732,712.62
  5. Step 5: Solve for x
    x = 129,096,732,712.62/403,798.80
  6. Step 6: Final answer
    x = 319,705.59

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1.5x scale

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.