Home / 712,226.20-1,067,820.90-291,285.40

Finding the Fourth Proportional to 712,226.20, 1,067,820.90 and 291,285.40

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Solution

The fourth proportional to 712,226.20, 1,067,820.90 and 291,285.40 is: 436,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,226.20 : 1,067,820.90 = 291,285.40 : x
  2. Step 2: Convert to fraction form
    712,226.20/1,067,820.90 = 291,285.40/x
  3. Step 3: Cross multiply
    712,226.20x = 1,067,820.90 × 291,285.40
  4. Step 4: Simplify right side
    712,226.20x = 311,040,637,984.86
  5. Step 5: Solve for x
    x = 311,040,637,984.86/712,226.20
  6. Step 6: Final answer
    x = 436,716.09

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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.