Home / 961,515.40-1,442,402.70-330,622.60

Finding the Fourth Proportional to 961,515.40, 1,442,402.70 and 330,622.60

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Solution

The fourth proportional to 961,515.40, 1,442,402.70 and 330,622.60 is: 495,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,515.40 : 1,442,402.70 = 330,622.60 : x
  2. Step 2: Convert to fraction form
    961,515.40/1,442,402.70 = 330,622.60/x
  3. Step 3: Cross multiply
    961,515.40x = 1,442,402.70 × 330,622.60
  4. Step 4: Simplify right side
    961,515.40x = 476,890,930,921.02
  5. Step 5: Solve for x
    x = 476,890,930,921.02/961,515.40
  6. Step 6: Final answer
    x = 495,978.46

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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.