Home / 478,771.20-660,677.76-263,910.96

Finding the Fourth Proportional to 478,771.20, 660,677.76 and 263,910.96

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Solution

The fourth proportional to 478,771.20, 660,677.76 and 263,910.96 is: 364,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,771.20 : 660,677.76 = 263,910.96 : x
  2. Step 2: Convert to fraction form
    478,771.20/660,677.76 = 263,910.96/x
  3. Step 3: Cross multiply
    478,771.20x = 660,677.76 × 263,910.96
  4. Step 4: Simplify right side
    478,771.20x = 174,360,101,892.25
  5. Step 5: Solve for x
    x = 174,360,101,892.25/478,771.20
  6. Step 6: Final answer
    x = 364,182.52

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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.