Home / 686,402.55-1,029,656.45-230,996.01

Finding the Fourth Proportional to 686,402.55, 1,029,656.45 and 230,996.01

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Solution

The fourth proportional to 686,402.55, 1,029,656.45 and 230,996.01 is: 346,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,402.55 : 1,029,656.45 = 230,996.01 : x
  2. Step 2: Convert to fraction form
    686,402.55/1,029,656.45 = 230,996.01/x
  3. Step 3: Cross multiply
    686,402.55x = 1,029,656.45 × 230,996.01
  4. Step 4: Simplify right side
    686,402.55x = 237,846,530,465.78
  5. Step 5: Solve for x
    x = 237,846,530,465.78/686,402.55
  6. Step 6: Final answer
    x = 346,511.72

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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.