Home / 667,487.80-1,001,340.90-218,078.20

Finding the Fourth Proportional to 667,487.80, 1,001,340.90 and 218,078.20

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Solution

The fourth proportional to 667,487.80, 1,001,340.90 and 218,078.20 is: 327,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,487.80 : 1,001,340.90 = 218,078.20 : x
  2. Step 2: Convert to fraction form
    667,487.80/1,001,340.90 = 218,078.20/x
  3. Step 3: Cross multiply
    667,487.80x = 1,001,340.90 × 218,078.20
  4. Step 4: Simplify right side
    667,487.80x = 218,370,621,058.38
  5. Step 5: Solve for x
    x = 218,370,621,058.38/667,487.80
  6. Step 6: Final answer
    x = 327,152.98

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1.5x scale

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.