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Finding the Fourth Proportional to 478,793.12, 660,726.24 and 263,953.16

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Solution

The fourth proportional to 478,793.12, 660,726.24 and 263,953.16 is: 364,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,793.12 : 660,726.24 = 263,953.16 : x
  2. Step 2: Convert to fraction form
    478,793.12/660,726.24 = 263,953.16/x
  3. Step 3: Cross multiply
    478,793.12x = 660,726.24 × 263,953.16
  4. Step 4: Simplify right side
    478,793.12x = 174,400,778,942.92
  5. Step 5: Solve for x
    x = 174,400,778,942.92/478,793.12
  6. Step 6: Final answer
    x = 364,250.80

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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.