Home / 667,550.80-1,001,326.20-489,091.60

Finding the Fourth Proportional to 667,550.80, 1,001,326.20 and 489,091.60

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Solution

The fourth proportional to 667,550.80, 1,001,326.20 and 489,091.60 is: 733,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,550.80 : 1,001,326.20 = 489,091.60 : x
  2. Step 2: Convert to fraction form
    667,550.80/1,001,326.20 = 489,091.60/x
  3. Step 3: Cross multiply
    667,550.80x = 1,001,326.20 × 489,091.60
  4. Step 4: Simplify right side
    667,550.80x = 489,740,233,279.92
  5. Step 5: Solve for x
    x = 489,740,233,279.92/667,550.80
  6. Step 6: Final answer
    x = 733,637.40

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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.