Home / 686,592.70-1,030,040.72-231,206.28

Finding the Fourth Proportional to 686,592.70, 1,030,040.72 and 231,206.28

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Solution

The fourth proportional to 686,592.70, 1,030,040.72 and 231,206.28 is: 346,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,592.70 : 1,030,040.72 = 231,206.28 : x
  2. Step 2: Convert to fraction form
    686,592.70/1,030,040.72 = 231,206.28/x
  3. Step 3: Cross multiply
    686,592.70x = 1,030,040.72 × 231,206.28
  4. Step 4: Simplify right side
    686,592.70x = 238,151,883,119.72
  5. Step 5: Solve for x
    x = 238,151,883,119.72/686,592.70
  6. Step 6: Final answer
    x = 346,860.49

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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.