Home / 1,226,986.76-1,692,901.14-791,219.72

Finding the Fourth Proportional to 1,226,986.76, 1,692,901.14 and 791,219.72

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Solution

The fourth proportional to 1,226,986.76, 1,692,901.14 and 791,219.72 is: 1,091,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,986.76 : 1,692,901.14 = 791,219.72 : x
  2. Step 2: Convert to fraction form
    1,226,986.76/1,692,901.14 = 791,219.72/x
  3. Step 3: Cross multiply
    1,226,986.76x = 1,692,901.14 × 791,219.72
  4. Step 4: Simplify right side
    1,226,986.76x = 1,339,456,765,978.48
  5. Step 5: Solve for x
    x = 1,339,456,765,978.48/1,226,986.76
  6. Step 6: Final answer
    x = 1,091,663.59

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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.