Home / 974,789.45-1,345,105.88-539,137.57

Finding the Fourth Proportional to 974,789.45, 1,345,105.88 and 539,137.57

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Solution

The fourth proportional to 974,789.45, 1,345,105.88 and 539,137.57 is: 743,952.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,789.45 : 1,345,105.88 = 539,137.57 : x
  2. Step 2: Convert to fraction form
    974,789.45/1,345,105.88 = 539,137.57/x
  3. Step 3: Cross multiply
    974,789.45x = 1,345,105.88 × 539,137.57
  4. Step 4: Simplify right side
    974,789.45x = 725,197,118,898.68
  5. Step 5: Solve for x
    x = 725,197,118,898.68/974,789.45
  6. Step 6: Final answer
    x = 743,952.57

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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.