Home / 478,772.20-660,679.14-263,911.96

Finding the Fourth Proportional to 478,772.20, 660,679.14 and 263,911.96

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Solution

The fourth proportional to 478,772.20, 660,679.14 and 263,911.96 is: 364,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,772.20 : 660,679.14 = 263,911.96 : x
  2. Step 2: Convert to fraction form
    478,772.20/660,679.14 = 263,911.96/x
  3. Step 3: Cross multiply
    478,772.20x = 660,679.14 × 263,911.96
  4. Step 4: Simplify right side
    478,772.20x = 174,361,126,768.51
  5. Step 5: Solve for x
    x = 174,361,126,768.51/478,772.20
  6. Step 6: Final answer
    x = 364,183.90

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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.