Home / 881,956.34-1,217,268.78-499,984.64

Finding the Fourth Proportional to 881,956.34, 1,217,268.78 and 499,984.64

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Solution

The fourth proportional to 881,956.34, 1,217,268.78 and 499,984.64 is: 690,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,956.34 : 1,217,268.78 = 499,984.64 : x
  2. Step 2: Convert to fraction form
    881,956.34/1,217,268.78 = 499,984.64/x
  3. Step 3: Cross multiply
    881,956.34x = 1,217,268.78 × 499,984.64
  4. Step 4: Simplify right side
    881,956.34x = 608,615,692,751.54
  5. Step 5: Solve for x
    x = 608,615,692,751.54/881,956.34
  6. Step 6: Final answer
    x = 690,074.63

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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.