Home / 2,131,011.32-3,197,778.05-784,119.74

Finding the Fourth Proportional to 2,131,011.32, 3,197,778.05 and 784,119.74

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Solution

The fourth proportional to 2,131,011.32, 3,197,778.05 and 784,119.74 is: 1,176,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,011.32 : 3,197,778.05 = 784,119.74 : x
  2. Step 2: Convert to fraction form
    2,131,011.32/3,197,778.05 = 784,119.74/x
  3. Step 3: Cross multiply
    2,131,011.32x = 3,197,778.05 × 784,119.74
  4. Step 4: Simplify right side
    2,131,011.32x = 2,507,440,879,115.12
  5. Step 5: Solve for x
    x = 2,507,440,879,115.12/2,131,011.32
  6. Step 6: Final answer
    x = 1,176,643.63

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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.