Home / 705,120.60-1,057,680.90-628,356.90

Finding the Fourth Proportional to 705,120.60, 1,057,680.90 and 628,356.90

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Solution

The fourth proportional to 705,120.60, 1,057,680.90 and 628,356.90 is: 942,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,120.60 : 1,057,680.90 = 628,356.90 : x
  2. Step 2: Convert to fraction form
    705,120.60/1,057,680.90 = 628,356.90/x
  3. Step 3: Cross multiply
    705,120.60x = 1,057,680.90 × 628,356.90
  4. Step 4: Simplify right side
    705,120.60x = 664,601,091,513.21
  5. Step 5: Solve for x
    x = 664,601,091,513.21/705,120.60
  6. Step 6: Final answer
    x = 942,535.35

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Double scale
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Similar ratio
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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.