Home / 681,952.80-1,022,929.20-208,639.20

Finding the Fourth Proportional to 681,952.80, 1,022,929.20 and 208,639.20

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Solution

The fourth proportional to 681,952.80, 1,022,929.20 and 208,639.20 is: 312,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,952.80 : 1,022,929.20 = 208,639.20 : x
  2. Step 2: Convert to fraction form
    681,952.80/1,022,929.20 = 208,639.20/x
  3. Step 3: Cross multiply
    681,952.80x = 1,022,929.20 × 208,639.20
  4. Step 4: Simplify right side
    681,952.80x = 213,423,129,944.64
  5. Step 5: Solve for x
    x = 213,423,129,944.64/681,952.80
  6. Step 6: Final answer
    x = 312,958.80

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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.