Home / 1,261,227.20-1,740,530.50-688,304.21

Finding the Fourth Proportional to 1,261,227.20, 1,740,530.50 and 688,304.21

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Solution

The fourth proportional to 1,261,227.20, 1,740,530.50 and 688,304.21 is: 949,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,227.20 : 1,740,530.50 = 688,304.21 : x
  2. Step 2: Convert to fraction form
    1,261,227.20/1,740,530.50 = 688,304.21/x
  3. Step 3: Cross multiply
    1,261,227.20x = 1,740,530.50 × 688,304.21
  4. Step 4: Simplify right side
    1,261,227.20x = 1,198,014,460,359.99
  5. Step 5: Solve for x
    x = 1,198,014,460,359.99/1,261,227.20
  6. Step 6: Final answer
    x = 949,879.98

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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.