Home / 880,729.64-1,215,481.86-498,824.36

Finding the Fourth Proportional to 880,729.64, 1,215,481.86 and 498,824.36

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Solution

The fourth proportional to 880,729.64, 1,215,481.86 and 498,824.36 is: 688,420.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,729.64 : 1,215,481.86 = 498,824.36 : x
  2. Step 2: Convert to fraction form
    880,729.64/1,215,481.86 = 498,824.36/x
  3. Step 3: Cross multiply
    880,729.64x = 1,215,481.86 × 498,824.36
  4. Step 4: Simplify right side
    880,729.64x = 606,311,960,906.11
  5. Step 5: Solve for x
    x = 606,311,960,906.11/880,729.64
  6. Step 6: Final answer
    x = 688,420.07

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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.