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Finding the Fourth Proportional to 479,764.55, 662,114.03 and 275,881.74

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Solution

The fourth proportional to 479,764.55, 662,114.03 and 275,881.74 is: 380,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,764.55 : 662,114.03 = 275,881.74 : x
  2. Step 2: Convert to fraction form
    479,764.55/662,114.03 = 275,881.74/x
  3. Step 3: Cross multiply
    479,764.55x = 662,114.03 × 275,881.74
  4. Step 4: Simplify right side
    479,764.55x = 182,665,169,295.40
  5. Step 5: Solve for x
    x = 182,665,169,295.40/479,764.55
  6. Step 6: Final answer
    x = 380,739.20

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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.