Home / 712,228.20-1,067,823.90-291,287.40

Finding the Fourth Proportional to 712,228.20, 1,067,823.90 and 291,287.40

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Solution

The fourth proportional to 712,228.20, 1,067,823.90 and 291,287.40 is: 436,719.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,228.20 : 1,067,823.90 = 291,287.40 : x
  2. Step 2: Convert to fraction form
    712,228.20/1,067,823.90 = 291,287.40/x
  3. Step 3: Cross multiply
    712,228.20x = 1,067,823.90 × 291,287.40
  4. Step 4: Simplify right side
    712,228.20x = 311,043,647,488.86
  5. Step 5: Solve for x
    x = 311,043,647,488.86/712,228.20
  6. Step 6: Final answer
    x = 436,719.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.