Home / 786,105.20-1,084,863.63-442,049.45

Finding the Fourth Proportional to 786,105.20, 1,084,863.63 and 442,049.45

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Solution

The fourth proportional to 786,105.20, 1,084,863.63 and 442,049.45 is: 610,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,105.20 : 1,084,863.63 = 442,049.45 : x
  2. Step 2: Convert to fraction form
    786,105.20/1,084,863.63 = 442,049.45/x
  3. Step 3: Cross multiply
    786,105.20x = 1,084,863.63 × 442,049.45
  4. Step 4: Simplify right side
    786,105.20x = 479,563,370,815.70
  5. Step 5: Solve for x
    x = 479,563,370,815.70/786,105.20
  6. Step 6: Final answer
    x = 610,049.86

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Double scale
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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.