Home / 1,391,989.82-2,088,295.41-445,417.34

Finding the Fourth Proportional to 1,391,989.82, 2,088,295.41 and 445,417.34

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Solution

The fourth proportional to 1,391,989.82, 2,088,295.41 and 445,417.34 is: 668,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,989.82 : 2,088,295.41 = 445,417.34 : x
  2. Step 2: Convert to fraction form
    1,391,989.82/2,088,295.41 = 445,417.34/x
  3. Step 3: Cross multiply
    1,391,989.82x = 2,088,295.41 × 445,417.34
  4. Step 4: Simplify right side
    1,391,989.82x = 930,162,986,656.41
  5. Step 5: Solve for x
    x = 930,162,986,656.41/1,391,989.82
  6. Step 6: Final answer
    x = 668,225.42

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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.