Home / 1,392,658.87-2,088,988.33-919,233.51

Finding the Fourth Proportional to 1,392,658.87, 2,088,988.33 and 919,233.51

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Solution

The fourth proportional to 1,392,658.87, 2,088,988.33 and 919,233.51 is: 1,378,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,658.87 : 2,088,988.33 = 919,233.51 : x
  2. Step 2: Convert to fraction form
    1,392,658.87/2,088,988.33 = 919,233.51/x
  3. Step 3: Cross multiply
    1,392,658.87x = 2,088,988.33 × 919,233.51
  4. Step 4: Simplify right side
    1,392,658.87x = 1,920,268,078,277.27
  5. Step 5: Solve for x
    x = 1,920,268,078,277.27/1,392,658.87
  6. Step 6: Final answer
    x = 1,378,850.28

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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.