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Finding the Fourth Proportional to 485,351.46, 669,786.03 and 270,487.22

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Solution

The fourth proportional to 485,351.46, 669,786.03 and 270,487.22 is: 373,272.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,351.46 : 669,786.03 = 270,487.22 : x
  2. Step 2: Convert to fraction form
    485,351.46/669,786.03 = 270,487.22/x
  3. Step 3: Cross multiply
    485,351.46x = 669,786.03 × 270,487.22
  4. Step 4: Simplify right side
    485,351.46x = 181,168,557,900.61
  5. Step 5: Solve for x
    x = 181,168,557,900.61/485,351.46
  6. Step 6: Final answer
    x = 373,272.92

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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.