Home / 1,274,243.22-1,911,660.68-421,263.41

Finding the Fourth Proportional to 1,274,243.22, 1,911,660.68 and 421,263.41

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Solution

The fourth proportional to 1,274,243.22, 1,911,660.68 and 421,263.41 is: 631,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,243.22 : 1,911,660.68 = 421,263.41 : x
  2. Step 2: Convert to fraction form
    1,274,243.22/1,911,660.68 = 421,263.41/x
  3. Step 3: Cross multiply
    1,274,243.22x = 1,911,660.68 × 421,263.41
  4. Step 4: Simplify right side
    1,274,243.22x = 805,312,685,155.10
  5. Step 5: Solve for x
    x = 805,312,685,155.10/1,274,243.22
  6. Step 6: Final answer
    x = 631,992.91

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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.