Home / 881,059.20-1,215,876.80-499,076.48

Finding the Fourth Proportional to 881,059.20, 1,215,876.80 and 499,076.48

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Solution

The fourth proportional to 881,059.20, 1,215,876.80 and 499,076.48 is: 688,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,059.20 : 1,215,876.80 = 499,076.48 : x
  2. Step 2: Convert to fraction form
    881,059.20/1,215,876.80 = 499,076.48/x
  3. Step 3: Cross multiply
    881,059.20x = 1,215,876.80 × 499,076.48
  4. Step 4: Simplify right side
    881,059.20x = 606,815,513,457.66
  5. Step 5: Solve for x
    x = 606,815,513,457.66/881,059.20
  6. Step 6: Final answer
    x = 688,734.10

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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.