Home / 2,131,031.70-3,197,808.64-784,140.14

Finding the Fourth Proportional to 2,131,031.70, 3,197,808.64 and 784,140.14

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Solution

The fourth proportional to 2,131,031.70, 3,197,808.64 and 784,140.14 is: 1,176,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,031.70 : 3,197,808.64 = 784,140.14 : x
  2. Step 2: Convert to fraction form
    2,131,031.70/3,197,808.64 = 784,140.14/x
  3. Step 3: Cross multiply
    2,131,031.70x = 3,197,808.64 × 784,140.14
  4. Step 4: Simplify right side
    2,131,031.70x = 2,507,530,114,662.81
  5. Step 5: Solve for x
    x = 2,507,530,114,662.81/2,131,031.70
  6. Step 6: Final answer
    x = 1,176,674.24

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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.