Home / 1,263,264.88-1,743,232.08-690,309.76

Finding the Fourth Proportional to 1,263,264.88, 1,743,232.08 and 690,309.76

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Solution

The fourth proportional to 1,263,264.88, 1,743,232.08 and 690,309.76 is: 952,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,264.88 : 1,743,232.08 = 690,309.76 : x
  2. Step 2: Convert to fraction form
    1,263,264.88/1,743,232.08 = 690,309.76/x
  3. Step 3: Cross multiply
    1,263,264.88x = 1,743,232.08 × 690,309.76
  4. Step 4: Simplify right side
    1,263,264.88x = 1,203,370,118,769.10
  5. Step 5: Solve for x
    x = 1,203,370,118,769.10/1,263,264.88
  6. Step 6: Final answer
    x = 952,587.33

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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.