Home / 740,770.11-1,022,262.78-401,238.36

Finding the Fourth Proportional to 740,770.11, 1,022,262.78 and 401,238.36

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Solution

The fourth proportional to 740,770.11, 1,022,262.78 and 401,238.36 is: 553,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,770.11 : 1,022,262.78 = 401,238.36 : x
  2. Step 2: Convert to fraction form
    740,770.11/1,022,262.78 = 401,238.36/x
  3. Step 3: Cross multiply
    740,770.11x = 1,022,262.78 × 401,238.36
  4. Step 4: Simplify right side
    740,770.11x = 410,171,040,583.92
  5. Step 5: Solve for x
    x = 410,171,040,583.92/740,770.11
  6. Step 6: Final answer
    x = 553,708.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.