Home / 1,215,715.95-1,821,943.76-946,169.55

Finding the Fourth Proportional to 1,215,715.95, 1,821,943.76 and 946,169.55

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Solution

The fourth proportional to 1,215,715.95, 1,821,943.76 and 946,169.55 is: 1,417,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,715.95 : 1,821,943.76 = 946,169.55 : x
  2. Step 2: Convert to fraction form
    1,215,715.95/1,821,943.76 = 946,169.55/x
  3. Step 3: Cross multiply
    1,215,715.95x = 1,821,943.76 × 946,169.55
  4. Step 4: Simplify right side
    1,215,715.95x = 1,723,867,702,793.66
  5. Step 5: Solve for x
    x = 1,723,867,702,793.66/1,215,715.95
  6. Step 6: Final answer
    x = 1,417,985.59

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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.