Home / 1,521,811.27-2,100,165.57-842,747.77

Finding the Fourth Proportional to 1,521,811.27, 2,100,165.57 and 842,747.77

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Solution

The fourth proportional to 1,521,811.27, 2,100,165.57 and 842,747.77 is: 1,163,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,811.27 : 2,100,165.57 = 842,747.77 : x
  2. Step 2: Convert to fraction form
    1,521,811.27/2,100,165.57 = 842,747.77/x
  3. Step 3: Cross multiply
    1,521,811.27x = 2,100,165.57 × 842,747.77
  4. Step 4: Simplify right side
    1,521,811.27x = 1,769,909,853,373.49
  5. Step 5: Solve for x
    x = 1,769,909,853,373.49/1,521,811.27
  6. Step 6: Final answer
    x = 1,163,028.48

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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.