Home / 677,651.84-1,015,972.11-407,716.71

Finding the Fourth Proportional to 677,651.84, 1,015,972.11 and 407,716.71

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Solution

The fourth proportional to 677,651.84, 1,015,972.11 and 407,716.71 is: 611,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,651.84 : 1,015,972.11 = 407,716.71 : x
  2. Step 2: Convert to fraction form
    677,651.84/1,015,972.11 = 407,716.71/x
  3. Step 3: Cross multiply
    677,651.84x = 1,015,972.11 × 407,716.71
  4. Step 4: Simplify right side
    677,651.84x = 414,228,806,140.96
  5. Step 5: Solve for x
    x = 414,228,806,140.96/677,651.84
  6. Step 6: Final answer
    x = 611,270.84

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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.