Home / 792,623.40-1,189,079.10-259,996.20

Finding the Fourth Proportional to 792,623.40, 1,189,079.10 and 259,996.20

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Solution

The fourth proportional to 792,623.40, 1,189,079.10 and 259,996.20 is: 390,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,623.40 : 1,189,079.10 = 259,996.20 : x
  2. Step 2: Convert to fraction form
    792,623.40/1,189,079.10 = 259,996.20/x
  3. Step 3: Cross multiply
    792,623.40x = 1,189,079.10 × 259,996.20
  4. Step 4: Simplify right side
    792,623.40x = 309,156,047,499.42
  5. Step 5: Solve for x
    x = 309,156,047,499.42/792,623.40
  6. Step 6: Final answer
    x = 390,041.53

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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.