Home / 842,839.40-1,162,894.19-480,255.46

Finding the Fourth Proportional to 842,839.40, 1,162,894.19 and 480,255.46

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Solution

The fourth proportional to 842,839.40, 1,162,894.19 and 480,255.46 is: 662,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,839.40 : 1,162,894.19 = 480,255.46 : x
  2. Step 2: Convert to fraction form
    842,839.40/1,162,894.19 = 480,255.46/x
  3. Step 3: Cross multiply
    842,839.40x = 1,162,894.19 × 480,255.46
  4. Step 4: Simplify right side
    842,839.40x = 558,486,278,841.27
  5. Step 5: Solve for x
    x = 558,486,278,841.27/842,839.40
  6. Step 6: Final answer
    x = 662,624.79

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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.