Home / 1,338,135.70-2,007,203.55-439,716.10

Finding the Fourth Proportional to 1,338,135.70, 2,007,203.55 and 439,716.10

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Solution

The fourth proportional to 1,338,135.70, 2,007,203.55 and 439,716.10 is: 659,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,135.70 : 2,007,203.55 = 439,716.10 : x
  2. Step 2: Convert to fraction form
    1,338,135.70/2,007,203.55 = 439,716.10/x
  3. Step 3: Cross multiply
    1,338,135.70x = 2,007,203.55 × 439,716.10
  4. Step 4: Simplify right side
    1,338,135.70x = 882,599,716,912.16
  5. Step 5: Solve for x
    x = 882,599,716,912.16/1,338,135.70
  6. Step 6: Final answer
    x = 659,574.15

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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.