Home / 717,086.56-1,075,638.48-218,454.88

Finding the Fourth Proportional to 717,086.56, 1,075,638.48 and 218,454.88

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Solution

The fourth proportional to 717,086.56, 1,075,638.48 and 218,454.88 is: 327,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,086.56 : 1,075,638.48 = 218,454.88 : x
  2. Step 2: Convert to fraction form
    717,086.56/1,075,638.48 = 218,454.88/x
  3. Step 3: Cross multiply
    717,086.56x = 1,075,638.48 × 218,454.88
  4. Step 4: Simplify right side
    717,086.56x = 234,978,475,071.78
  5. Step 5: Solve for x
    x = 234,978,475,071.78/717,086.56
  6. Step 6: Final answer
    x = 327,684.95

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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.