Home / 1,112,236.41-1,667,232.75-438,057.21

Finding the Fourth Proportional to 1,112,236.41, 1,667,232.75 and 438,057.21

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Solution

The fourth proportional to 1,112,236.41, 1,667,232.75 and 438,057.21 is: 656,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,236.41 : 1,667,232.75 = 438,057.21 : x
  2. Step 2: Convert to fraction form
    1,112,236.41/1,667,232.75 = 438,057.21/x
  3. Step 3: Cross multiply
    1,112,236.41x = 1,667,232.75 × 438,057.21
  4. Step 4: Simplify right side
    1,112,236.41x = 730,343,326,885.63
  5. Step 5: Solve for x
    x = 730,343,326,885.63/1,112,236.41
  6. Step 6: Final answer
    x = 656,643.97

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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.