Home / 1,521,441.52-2,099,654.90-842,378

Finding the Fourth Proportional to 1,521,441.52, 2,099,654.90 and 842,378

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Solution

The fourth proportional to 1,521,441.52, 2,099,654.90 and 842,378 is: 1,162,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,441.52 : 2,099,654.90 = 842,378 : x
  2. Step 2: Convert to fraction form
    1,521,441.52/2,099,654.90 = 842,378/x
  3. Step 3: Cross multiply
    1,521,441.52x = 2,099,654.90 × 842,378
  4. Step 4: Simplify right side
    1,521,441.52x = 1,768,703,095,352.20
  5. Step 5: Solve for x
    x = 1,768,703,095,352.20/1,521,441.52
  6. Step 6: Final answer
    x = 1,162,517.96

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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.