Home / 792,643.60-1,188,965.40-260,246.80

Finding the Fourth Proportional to 792,643.60, 1,188,965.40 and 260,246.80

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Solution

The fourth proportional to 792,643.60, 1,188,965.40 and 260,246.80 is: 390,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,643.60 : 1,188,965.40 = 260,246.80 : x
  2. Step 2: Convert to fraction form
    792,643.60/1,188,965.40 = 260,246.80/x
  3. Step 3: Cross multiply
    792,643.60x = 1,188,965.40 × 260,246.80
  4. Step 4: Simplify right side
    792,643.60x = 309,424,440,660.72
  5. Step 5: Solve for x
    x = 309,424,440,660.72/792,643.60
  6. Step 6: Final answer
    x = 390,370.20

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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.