Home / 1,215,711.63-1,821,937.32-946,165.21

Finding the Fourth Proportional to 1,215,711.63, 1,821,937.32 and 946,165.21

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Solution

The fourth proportional to 1,215,711.63, 1,821,937.32 and 946,165.21 is: 1,417,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,711.63 : 1,821,937.32 = 946,165.21 : x
  2. Step 2: Convert to fraction form
    1,215,711.63/1,821,937.32 = 946,165.21/x
  3. Step 3: Cross multiply
    1,215,711.63x = 1,821,937.32 × 946,165.21
  4. Step 4: Simplify right side
    1,215,711.63x = 1,723,853,702,429.79
  5. Step 5: Solve for x
    x = 1,723,853,702,429.79/1,215,711.63
  6. Step 6: Final answer
    x = 1,417,979.12

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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.