Home / 693,191.12-1,039,629.50-313,861.43

Finding the Fourth Proportional to 693,191.12, 1,039,629.50 and 313,861.43

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Solution

The fourth proportional to 693,191.12, 1,039,629.50 and 313,861.43 is: 470,720.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,191.12 : 1,039,629.50 = 313,861.43 : x
  2. Step 2: Convert to fraction form
    693,191.12/1,039,629.50 = 313,861.43/x
  3. Step 3: Cross multiply
    693,191.12x = 1,039,629.50 × 313,861.43
  4. Step 4: Simplify right side
    693,191.12x = 326,299,603,746.93
  5. Step 5: Solve for x
    x = 326,299,603,746.93/693,191.12
  6. Step 6: Final answer
    x = 470,720.98

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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.