Home / 741,905.80-1,112,858.70-442,724.20

Finding the Fourth Proportional to 741,905.80, 1,112,858.70 and 442,724.20

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Solution

The fourth proportional to 741,905.80, 1,112,858.70 and 442,724.20 is: 664,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,905.80 : 1,112,858.70 = 442,724.20 : x
  2. Step 2: Convert to fraction form
    741,905.80/1,112,858.70 = 442,724.20/x
  3. Step 3: Cross multiply
    741,905.80x = 1,112,858.70 × 442,724.20
  4. Step 4: Simplify right side
    741,905.80x = 492,689,477,670.54
  5. Step 5: Solve for x
    x = 492,689,477,670.54/741,905.80
  6. Step 6: Final answer
    x = 664,086.30

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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.