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Finding the Fourth Proportional to 485,538.64, 670,092.36 and 270,713.68

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Solution

The fourth proportional to 485,538.64, 670,092.36 and 270,713.68 is: 373,612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,538.64 : 670,092.36 = 270,713.68 : x
  2. Step 2: Convert to fraction form
    485,538.64/670,092.36 = 270,713.68/x
  3. Step 3: Cross multiply
    485,538.64x = 670,092.36 × 270,713.68
  4. Step 4: Simplify right side
    485,538.64x = 181,403,168,715.49
  5. Step 5: Solve for x
    x = 181,403,168,715.49/485,538.64
  6. Step 6: Final answer
    x = 373,612.22

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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.