Home / 792,874.40-1,189,311.60-260,412.80

Finding the Fourth Proportional to 792,874.40, 1,189,311.60 and 260,412.80

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Solution

The fourth proportional to 792,874.40, 1,189,311.60 and 260,412.80 is: 390,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,874.40 : 1,189,311.60 = 260,412.80 : x
  2. Step 2: Convert to fraction form
    792,874.40/1,189,311.60 = 260,412.80/x
  3. Step 3: Cross multiply
    792,874.40x = 1,189,311.60 × 260,412.80
  4. Step 4: Simplify right side
    792,874.40x = 309,711,963,828.48
  5. Step 5: Solve for x
    x = 309,711,963,828.48/792,874.40
  6. Step 6: Final answer
    x = 390,619.20

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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.