Home / 774,689.82-1,162,101.68-213,724.32

Finding the Fourth Proportional to 774,689.82, 1,162,101.68 and 213,724.32

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Solution

The fourth proportional to 774,689.82, 1,162,101.68 and 213,724.32 is: 320,604.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,689.82 : 1,162,101.68 = 213,724.32 : x
  2. Step 2: Convert to fraction form
    774,689.82/1,162,101.68 = 213,724.32/x
  3. Step 3: Cross multiply
    774,689.82x = 1,162,101.68 × 213,724.32
  4. Step 4: Simplify right side
    774,689.82x = 248,369,391,328.86
  5. Step 5: Solve for x
    x = 248,369,391,328.86/774,689.82
  6. Step 6: Final answer
    x = 320,604.95

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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.