Home / 686,890.55-1,029,608.63-231,047.84

Finding the Fourth Proportional to 686,890.55, 1,029,608.63 and 231,047.84

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Solution

The fourth proportional to 686,890.55, 1,029,608.63 and 231,047.84 is: 346,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,890.55 : 1,029,608.63 = 231,047.84 : x
  2. Step 2: Convert to fraction form
    686,890.55/1,029,608.63 = 231,047.84/x
  3. Step 3: Cross multiply
    686,890.55x = 1,029,608.63 × 231,047.84
  4. Step 4: Simplify right side
    686,890.55x = 237,888,844,570.01
  5. Step 5: Solve for x
    x = 237,888,844,570.01/686,890.55
  6. Step 6: Final answer
    x = 346,327.15

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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.