Home / 726,778.60-1,090,815.90-426,884.20

Finding the Fourth Proportional to 726,778.60, 1,090,815.90 and 426,884.20

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Solution

The fourth proportional to 726,778.60, 1,090,815.90 and 426,884.20 is: 640,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,778.60 : 1,090,815.90 = 426,884.20 : x
  2. Step 2: Convert to fraction form
    726,778.60/1,090,815.90 = 426,884.20/x
  3. Step 3: Cross multiply
    726,778.60x = 1,090,815.90 × 426,884.20
  4. Step 4: Simplify right side
    726,778.60x = 465,652,072,818.78
  5. Step 5: Solve for x
    x = 465,652,072,818.78/726,778.60
  6. Step 6: Final answer
    x = 640,706.91

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Double scale
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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.