Home / 1,263,276.88-1,743,248.64-690,321.76

Finding the Fourth Proportional to 1,263,276.88, 1,743,248.64 and 690,321.76

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Solution

The fourth proportional to 1,263,276.88, 1,743,248.64 and 690,321.76 is: 952,603.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,276.88 : 1,743,248.64 = 690,321.76 : x
  2. Step 2: Convert to fraction form
    1,263,276.88/1,743,248.64 = 690,321.76/x
  3. Step 3: Cross multiply
    1,263,276.88x = 1,743,248.64 × 690,321.76
  4. Step 4: Simplify right side
    1,263,276.88x = 1,203,402,469,282.41
  5. Step 5: Solve for x
    x = 1,203,402,469,282.41/1,263,276.88
  6. Step 6: Final answer
    x = 952,603.89

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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.