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Finding the Fourth Proportional to 485,398.32, 669,852.80 and 270,552.03

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Solution

The fourth proportional to 485,398.32, 669,852.80 and 270,552.03 is: 373,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,398.32 : 669,852.80 = 270,552.03 : x
  2. Step 2: Convert to fraction form
    485,398.32/669,852.80 = 270,552.03/x
  3. Step 3: Cross multiply
    485,398.32x = 669,852.80 × 270,552.03
  4. Step 4: Simplify right side
    485,398.32x = 181,230,034,841.18
  5. Step 5: Solve for x
    x = 181,230,034,841.18/485,398.32
  6. Step 6: Final answer
    x = 373,363.54

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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.