Home / 862,890.38-1,294,374.45-330,273.26

Finding the Fourth Proportional to 862,890.38, 1,294,374.45 and 330,273.26

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Solution

The fourth proportional to 862,890.38, 1,294,374.45 and 330,273.26 is: 495,424.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,890.38 : 1,294,374.45 = 330,273.26 : x
  2. Step 2: Convert to fraction form
    862,890.38/1,294,374.45 = 330,273.26/x
  3. Step 3: Cross multiply
    862,890.38x = 1,294,374.45 × 330,273.26
  4. Step 4: Simplify right side
    862,890.38x = 427,497,269,262.21
  5. Step 5: Solve for x
    x = 427,497,269,262.21/862,890.38
  6. Step 6: Final answer
    x = 495,424.77

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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.