Home / 881,009.52-1,215,754.20-499,028.64

Finding the Fourth Proportional to 881,009.52, 1,215,754.20 and 499,028.64

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Solution

The fourth proportional to 881,009.52, 1,215,754.20 and 499,028.64 is: 688,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,009.52 : 1,215,754.20 = 499,028.64 : x
  2. Step 2: Convert to fraction form
    881,009.52/1,215,754.20 = 499,028.64/x
  3. Step 3: Cross multiply
    881,009.52x = 1,215,754.20 × 499,028.64
  4. Step 4: Simplify right side
    881,009.52x = 606,696,165,000.29
  5. Step 5: Solve for x
    x = 606,696,165,000.29/881,009.52
  6. Step 6: Final answer
    x = 688,637.47

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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.