Home / 779,343.28-1,169,351.69-419,093.07

Finding the Fourth Proportional to 779,343.28, 1,169,351.69 and 419,093.07

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Solution

The fourth proportional to 779,343.28, 1,169,351.69 and 419,093.07 is: 628,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,343.28 : 1,169,351.69 = 419,093.07 : x
  2. Step 2: Convert to fraction form
    779,343.28/1,169,351.69 = 419,093.07/x
  3. Step 3: Cross multiply
    779,343.28x = 1,169,351.69 × 419,093.07
  4. Step 4: Simplify right side
    779,343.28x = 490,067,189,671.79
  5. Step 5: Solve for x
    x = 490,067,189,671.79/779,343.28
  6. Step 6: Final answer
    x = 628,820.70

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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.