Home / 939,162-1,408,964.16-747,760.35

Finding the Fourth Proportional to 939,162, 1,408,964.16 and 747,760.35

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Solution

The fourth proportional to 939,162, 1,408,964.16 and 747,760.35 is: 1,121,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,162 : 1,408,964.16 = 747,760.35 : x
  2. Step 2: Convert to fraction form
    939,162/1,408,964.16 = 747,760.35/x
  3. Step 3: Cross multiply
    939,162x = 1,408,964.16 × 747,760.35
  4. Step 4: Simplify right side
    939,162x = 1,053,567,533,419.06
  5. Step 5: Solve for x
    x = 1,053,567,533,419.06/939,162
  6. Step 6: Final answer
    x = 1,121,816.61

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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.