Home / 667,711.90-1,001,567.85-401,335.30

Finding the Fourth Proportional to 667,711.90, 1,001,567.85 and 401,335.30

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Solution

The fourth proportional to 667,711.90, 1,001,567.85 and 401,335.30 is: 602,002.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,711.90 : 1,001,567.85 = 401,335.30 : x
  2. Step 2: Convert to fraction form
    667,711.90/1,001,567.85 = 401,335.30/x
  3. Step 3: Cross multiply
    667,711.90x = 1,001,567.85 × 401,335.30
  4. Step 4: Simplify right side
    667,711.90x = 401,964,533,550.11
  5. Step 5: Solve for x
    x = 401,964,533,550.11/667,711.90
  6. Step 6: Final answer
    x = 602,002.95

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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.