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Finding the Fourth Proportional to 478,277.60, 660,027.30 and 263,425.10

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Solution

The fourth proportional to 478,277.60, 660,027.30 and 263,425.10 is: 363,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,277.60 : 660,027.30 = 263,425.10 : x
  2. Step 2: Convert to fraction form
    478,277.60/660,027.30 = 263,425.10/x
  3. Step 3: Cross multiply
    478,277.60x = 660,027.30 × 263,425.10
  4. Step 4: Simplify right side
    478,277.60x = 173,867,757,505.23
  5. Step 5: Solve for x
    x = 173,867,757,505.23/478,277.60
  6. Step 6: Final answer
    x = 363,528.96

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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.