Home / 881,090.12-1,215,964.50-499,120.04

Finding the Fourth Proportional to 881,090.12, 1,215,964.50 and 499,120.04

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Solution

The fourth proportional to 881,090.12, 1,215,964.50 and 499,120.04 is: 688,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,090.12 : 1,215,964.50 = 499,120.04 : x
  2. Step 2: Convert to fraction form
    881,090.12/1,215,964.50 = 499,120.04/x
  3. Step 3: Cross multiply
    881,090.12x = 1,215,964.50 × 499,120.04
  4. Step 4: Simplify right side
    881,090.12x = 606,912,249,878.58
  5. Step 5: Solve for x
    x = 606,912,249,878.58/881,090.12
  6. Step 6: Final answer
    x = 688,819.72

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1.5x scale

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.