Home / 881,061.60-1,215,825.76-499,080.64

Finding the Fourth Proportional to 881,061.60, 1,215,825.76 and 499,080.64

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Solution

The fourth proportional to 881,061.60, 1,215,825.76 and 499,080.64 is: 688,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,061.60 : 1,215,825.76 = 499,080.64 : x
  2. Step 2: Convert to fraction form
    881,061.60/1,215,825.76 = 499,080.64/x
  3. Step 3: Cross multiply
    881,061.60x = 1,215,825.76 × 499,080.64
  4. Step 4: Simplify right side
    881,061.60x = 606,795,098,429.29
  5. Step 5: Solve for x
    x = 606,795,098,429.29/881,061.60
  6. Step 6: Final answer
    x = 688,709.05

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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.