Home / 779,904.28-1,169,856.42-281,268.28

Finding the Fourth Proportional to 779,904.28, 1,169,856.42 and 281,268.28

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Solution

The fourth proportional to 779,904.28, 1,169,856.42 and 281,268.28 is: 421,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,904.28 : 1,169,856.42 = 281,268.28 : x
  2. Step 2: Convert to fraction form
    779,904.28/1,169,856.42 = 281,268.28/x
  3. Step 3: Cross multiply
    779,904.28x = 1,169,856.42 × 281,268.28
  4. Step 4: Simplify right side
    779,904.28x = 329,043,503,100.36
  5. Step 5: Solve for x
    x = 329,043,503,100.36/779,904.28
  6. Step 6: Final answer
    x = 421,902.42

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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.