Home / 1,521,645.75-2,099,871.14-842,582.25

Finding the Fourth Proportional to 1,521,645.75, 2,099,871.14 and 842,582.25

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Solution

The fourth proportional to 1,521,645.75, 2,099,871.14 and 842,582.25 is: 1,162,763.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,645.75 : 2,099,871.14 = 842,582.25 : x
  2. Step 2: Convert to fraction form
    1,521,645.75/2,099,871.14 = 842,582.25/x
  3. Step 3: Cross multiply
    1,521,645.75x = 2,099,871.14 × 842,582.25
  4. Step 4: Simplify right side
    1,521,645.75x = 1,769,314,145,638.35
  5. Step 5: Solve for x
    x = 1,769,314,145,638.35/1,521,645.75
  6. Step 6: Final answer
    x = 1,162,763.51

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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.