Home / 1,015,489.92-1,401,391.52-556,600.96

Finding the Fourth Proportional to 1,015,489.92, 1,401,391.52 and 556,600.96

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Solution

The fourth proportional to 1,015,489.92, 1,401,391.52 and 556,600.96 is: 768,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,489.92 : 1,401,391.52 = 556,600.96 : x
  2. Step 2: Convert to fraction form
    1,015,489.92/1,401,391.52 = 556,600.96/x
  3. Step 3: Cross multiply
    1,015,489.92x = 1,401,391.52 × 556,600.96
  4. Step 4: Simplify right side
    1,015,489.92x = 780,015,865,367.86
  5. Step 5: Solve for x
    x = 780,015,865,367.86/1,015,489.92
  6. Step 6: Final answer
    x = 768,117.78

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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.