Home / 855,468.60-1,280,438.10-667,462.20

Finding the Fourth Proportional to 855,468.60, 1,280,438.10 and 667,462.20

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Solution

The fourth proportional to 855,468.60, 1,280,438.10 and 667,462.20 is: 999,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,468.60 : 1,280,438.10 = 667,462.20 : x
  2. Step 2: Convert to fraction form
    855,468.60/1,280,438.10 = 667,462.20/x
  3. Step 3: Cross multiply
    855,468.60x = 1,280,438.10 × 667,462.20
  4. Step 4: Simplify right side
    855,468.60x = 854,644,031,189.82
  5. Step 5: Solve for x
    x = 854,644,031,189.82/855,468.60
  6. Step 6: Final answer
    x = 999,036.12

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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.