Home / 880,209.15-1,320,157.65-400,324.55

Finding the Fourth Proportional to 880,209.15, 1,320,157.65 and 400,324.55

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Solution

The fourth proportional to 880,209.15, 1,320,157.65 and 400,324.55 is: 600,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,209.15 : 1,320,157.65 = 400,324.55 : x
  2. Step 2: Convert to fraction form
    880,209.15/1,320,157.65 = 400,324.55/x
  3. Step 3: Cross multiply
    880,209.15x = 1,320,157.65 × 400,324.55
  4. Step 4: Simplify right side
    880,209.15x = 528,491,510,564.52
  5. Step 5: Solve for x
    x = 528,491,510,564.52/880,209.15
  6. Step 6: Final answer
    x = 600,415.83

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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.