Home / 693,150.18-1,039,824.45-213,418.57

Finding the Fourth Proportional to 693,150.18, 1,039,824.45 and 213,418.57

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Solution

The fourth proportional to 693,150.18, 1,039,824.45 and 213,418.57 is: 320,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,150.18 : 1,039,824.45 = 213,418.57 : x
  2. Step 2: Convert to fraction form
    693,150.18/1,039,824.45 = 213,418.57/x
  3. Step 3: Cross multiply
    693,150.18x = 1,039,824.45 × 213,418.57
  4. Step 4: Simplify right side
    693,150.18x = 221,917,846,119.99
  5. Step 5: Solve for x
    x = 221,917,846,119.99/693,150.18
  6. Step 6: Final answer
    x = 320,158.39

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1.5x scale

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.