Home / 1,103,431.20-1,522,571.76-638,270.88

Finding the Fourth Proportional to 1,103,431.20, 1,522,571.76 and 638,270.88

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Solution

The fourth proportional to 1,103,431.20, 1,522,571.76 and 638,270.88 is: 880,719.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,431.20 : 1,522,571.76 = 638,270.88 : x
  2. Step 2: Convert to fraction form
    1,103,431.20/1,522,571.76 = 638,270.88/x
  3. Step 3: Cross multiply
    1,103,431.20x = 1,522,571.76 × 638,270.88
  4. Step 4: Simplify right side
    1,103,431.20x = 971,813,217,118.35
  5. Step 5: Solve for x
    x = 971,813,217,118.35/1,103,431.20
  6. Step 6: Final answer
    x = 880,719.36

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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.