Home / 741,141.12-1,111,777.28-208,666.72

Finding the Fourth Proportional to 741,141.12, 1,111,777.28 and 208,666.72

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Solution

The fourth proportional to 741,141.12, 1,111,777.28 and 208,666.72 is: 313,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,141.12 : 1,111,777.28 = 208,666.72 : x
  2. Step 2: Convert to fraction form
    741,141.12/1,111,777.28 = 208,666.72/x
  3. Step 3: Cross multiply
    741,141.12x = 1,111,777.28 × 208,666.72
  4. Step 4: Simplify right side
    741,141.12x = 231,990,918,388.12
  5. Step 5: Solve for x
    x = 231,990,918,388.12/741,141.12
  6. Step 6: Final answer
    x = 313,018.55

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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.