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Finding the Fourth Proportional to 441,331.20, 608,860.80 and 288,316.80

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Solution

The fourth proportional to 441,331.20, 608,860.80 and 288,316.80 is: 397,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,331.20 : 608,860.80 = 288,316.80 : x
  2. Step 2: Convert to fraction form
    441,331.20/608,860.80 = 288,316.80/x
  3. Step 3: Cross multiply
    441,331.20x = 608,860.80 × 288,316.80
  4. Step 4: Simplify right side
    441,331.20x = 175,544,797,501.44
  5. Step 5: Solve for x
    x = 175,544,797,501.44/441,331.20
  6. Step 6: Final answer
    x = 397,762.04

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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.