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Finding the Fourth Proportional to 478,309.52, 660,097.08 and 263,449.53

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Solution

The fourth proportional to 478,309.52, 660,097.08 and 263,449.53 is: 363,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,309.52 : 660,097.08 = 263,449.53 : x
  2. Step 2: Convert to fraction form
    478,309.52/660,097.08 = 263,449.53/x
  3. Step 3: Cross multiply
    478,309.52x = 660,097.08 × 263,449.53
  4. Step 4: Simplify right side
    478,309.52x = 173,902,265,480.37
  5. Step 5: Solve for x
    x = 173,902,265,480.37/478,309.52
  6. Step 6: Final answer
    x = 363,576.84

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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.