Home / 1,274,245.22-1,911,663.68-421,265.41

Finding the Fourth Proportional to 1,274,245.22, 1,911,663.68 and 421,265.41

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Solution

The fourth proportional to 1,274,245.22, 1,911,663.68 and 421,265.41 is: 631,995.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,245.22 : 1,911,663.68 = 421,265.41 : x
  2. Step 2: Convert to fraction form
    1,274,245.22/1,911,663.68 = 421,265.41/x
  3. Step 3: Cross multiply
    1,274,245.22x = 1,911,663.68 × 421,265.41
  4. Step 4: Simplify right side
    1,274,245.22x = 805,317,783,937.31
  5. Step 5: Solve for x
    x = 805,317,783,937.31/1,274,245.22
  6. Step 6: Final answer
    x = 631,995.92

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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.