Home / 1,521,801.64-2,100,086.85-842,738.14

Finding the Fourth Proportional to 1,521,801.64, 2,100,086.85 and 842,738.14

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Solution

The fourth proportional to 1,521,801.64, 2,100,086.85 and 842,738.14 is: 1,162,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,801.64 : 2,100,086.85 = 842,738.14 : x
  2. Step 2: Convert to fraction form
    1,521,801.64/2,100,086.85 = 842,738.14/x
  3. Step 3: Cross multiply
    1,521,801.64x = 2,100,086.85 × 842,738.14
  4. Step 4: Simplify right side
    1,521,801.64x = 1,769,823,285,807.46
  5. Step 5: Solve for x
    x = 1,769,823,285,807.46/1,521,801.64
  6. Step 6: Final answer
    x = 1,162,978.96

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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.