Home / 686,098.60-1,028,273.10-330,346.60

Finding the Fourth Proportional to 686,098.60, 1,028,273.10 and 330,346.60

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Solution

The fourth proportional to 686,098.60, 1,028,273.10 and 330,346.60 is: 495,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,098.60 : 1,028,273.10 = 330,346.60 : x
  2. Step 2: Convert to fraction form
    686,098.60/1,028,273.10 = 330,346.60/x
  3. Step 3: Cross multiply
    686,098.60x = 1,028,273.10 × 330,346.60
  4. Step 4: Simplify right side
    686,098.60x = 339,686,522,456.46
  5. Step 5: Solve for x
    x = 339,686,522,456.46/686,098.60
  6. Step 6: Final answer
    x = 495,098.70

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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.