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Finding the Fourth Proportional to 478,015.68, 659,637.60 and 263,174.40

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Solution

The fourth proportional to 478,015.68, 659,637.60 and 263,174.40 is: 363,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,015.68 : 659,637.60 = 263,174.40 : x
  2. Step 2: Convert to fraction form
    478,015.68/659,637.60 = 263,174.40/x
  3. Step 3: Cross multiply
    478,015.68x = 659,637.60 × 263,174.40
  4. Step 4: Simplify right side
    478,015.68x = 173,599,729,597.44
  5. Step 5: Solve for x
    x = 173,599,729,597.44/478,015.68
  6. Step 6: Final answer
    x = 363,167.44

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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.