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Finding the Fourth Proportional to 485,860.08, 670,487.82 and 271,014.06

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Solution

The fourth proportional to 485,860.08, 670,487.82 and 271,014.06 is: 373,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,860.08 : 670,487.82 = 271,014.06 : x
  2. Step 2: Convert to fraction form
    485,860.08/670,487.82 = 271,014.06/x
  3. Step 3: Cross multiply
    485,860.08x = 670,487.82 × 271,014.06
  4. Step 4: Simplify right side
    485,860.08x = 181,711,626,278.75
  5. Step 5: Solve for x
    x = 181,711,626,278.75/485,860.08
  6. Step 6: Final answer
    x = 373,999.91

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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.