Home / 440,876.80-661,315.20-263,929.60

Finding the Fourth Proportional to 440,876.80, 661,315.20 and 263,929.60

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Solution

The fourth proportional to 440,876.80, 661,315.20 and 263,929.60 is: 395,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,876.80 : 661,315.20 = 263,929.60 : x
  2. Step 2: Convert to fraction form
    440,876.80/661,315.20 = 263,929.60/x
  3. Step 3: Cross multiply
    440,876.80x = 661,315.20 × 263,929.60
  4. Step 4: Simplify right side
    440,876.80x = 174,540,656,209.92
  5. Step 5: Solve for x
    x = 174,540,656,209.92/440,876.80
  6. Step 6: Final answer
    x = 395,894.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.