Home / 686,748.38-1,030,270.19-231,384.87

Finding the Fourth Proportional to 686,748.38, 1,030,270.19 and 231,384.87

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Solution

The fourth proportional to 686,748.38, 1,030,270.19 and 231,384.87 is: 347,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,748.38 : 1,030,270.19 = 231,384.87 : x
  2. Step 2: Convert to fraction form
    686,748.38/1,030,270.19 = 231,384.87/x
  3. Step 3: Cross multiply
    686,748.38x = 1,030,270.19 × 231,384.87
  4. Step 4: Simplify right side
    686,748.38x = 238,388,932,821.10
  5. Step 5: Solve for x
    x = 238,388,932,821.10/686,748.38
  6. Step 6: Final answer
    x = 347,127.04

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1.5x scale

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.