Home / 723,251.94-1,084,950.81-190,809.78

Finding the Fourth Proportional to 723,251.94, 1,084,950.81 and 190,809.78

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Solution

The fourth proportional to 723,251.94, 1,084,950.81 and 190,809.78 is: 286,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,251.94 : 1,084,950.81 = 190,809.78 : x
  2. Step 2: Convert to fraction form
    723,251.94/1,084,950.81 = 190,809.78/x
  3. Step 3: Cross multiply
    723,251.94x = 1,084,950.81 × 190,809.78
  4. Step 4: Simplify right side
    723,251.94x = 207,019,225,366.92
  5. Step 5: Solve for x
    x = 207,019,225,366.92/723,251.94
  6. Step 6: Final answer
    x = 286,233.90

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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.