Home / 729,774.20-1,091,708.85-641,200.70

Finding the Fourth Proportional to 729,774.20, 1,091,708.85 and 641,200.70

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Solution

The fourth proportional to 729,774.20, 1,091,708.85 and 641,200.70 is: 959,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,774.20 : 1,091,708.85 = 641,200.70 : x
  2. Step 2: Convert to fraction form
    729,774.20/1,091,708.85 = 641,200.70/x
  3. Step 3: Cross multiply
    729,774.20x = 1,091,708.85 × 641,200.70
  4. Step 4: Simplify right side
    729,774.20x = 700,004,478,816.20
  5. Step 5: Solve for x
    x = 700,004,478,816.20/729,774.20
  6. Step 6: Final answer
    x = 959,206.94

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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.