Home / 746,800.40-1,120,200.60-426,623.60

Finding the Fourth Proportional to 746,800.40, 1,120,200.60 and 426,623.60

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Solution

The fourth proportional to 746,800.40, 1,120,200.60 and 426,623.60 is: 639,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,800.40 : 1,120,200.60 = 426,623.60 : x
  2. Step 2: Convert to fraction form
    746,800.40/1,120,200.60 = 426,623.60/x
  3. Step 3: Cross multiply
    746,800.40x = 1,120,200.60 × 426,623.60
  4. Step 4: Simplify right side
    746,800.40x = 477,904,012,694.16
  5. Step 5: Solve for x
    x = 477,904,012,694.16/746,800.40
  6. Step 6: Final answer
    x = 639,935.40

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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.