Home / 2,120,931.62-3,180,986.84-824,081.79

Finding the Fourth Proportional to 2,120,931.62, 3,180,986.84 and 824,081.79

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Solution

The fourth proportional to 2,120,931.62, 3,180,986.84 and 824,081.79 is: 1,235,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,931.62 : 3,180,986.84 = 824,081.79 : x
  2. Step 2: Convert to fraction form
    2,120,931.62/3,180,986.84 = 824,081.79/x
  3. Step 3: Cross multiply
    2,120,931.62x = 3,180,986.84 × 824,081.79
  4. Step 4: Simplify right side
    2,120,931.62x = 2,621,393,329,073.64
  5. Step 5: Solve for x
    x = 2,621,393,329,073.64/2,120,931.62
  6. Step 6: Final answer
    x = 1,235,963.15

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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.