Home / 690,039.32-1,034,708.94-315,741.56

Finding the Fourth Proportional to 690,039.32, 1,034,708.94 and 315,741.56

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Solution

The fourth proportional to 690,039.32, 1,034,708.94 and 315,741.56 is: 473,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,039.32 : 1,034,708.94 = 315,741.56 : x
  2. Step 2: Convert to fraction form
    690,039.32/1,034,708.94 = 315,741.56/x
  3. Step 3: Cross multiply
    690,039.32x = 1,034,708.94 × 315,741.56
  4. Step 4: Simplify right side
    690,039.32x = 326,700,614,861.55
  5. Step 5: Solve for x
    x = 326,700,614,861.55/690,039.32
  6. Step 6: Final answer
    x = 473,452.17

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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.