Home / 809,461.87-1,213,981.38-240,689.83

Finding the Fourth Proportional to 809,461.87, 1,213,981.38 and 240,689.83

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Solution

The fourth proportional to 809,461.87, 1,213,981.38 and 240,689.83 is: 360,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,461.87 : 1,213,981.38 = 240,689.83 : x
  2. Step 2: Convert to fraction form
    809,461.87/1,213,981.38 = 240,689.83/x
  3. Step 3: Cross multiply
    809,461.87x = 1,213,981.38 × 240,689.83
  4. Step 4: Simplify right side
    809,461.87x = 292,192,971,975.37
  5. Step 5: Solve for x
    x = 292,192,971,975.37/809,461.87
  6. Step 6: Final answer
    x = 360,971.88

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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.