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Finding the Fourth Proportional to 644,969.20, 967,453.80 and 495,961.60

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Solution

The fourth proportional to 644,969.20, 967,453.80 and 495,961.60 is: 743,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,969.20 : 967,453.80 = 495,961.60 : x
  2. Step 2: Convert to fraction form
    644,969.20/967,453.80 = 495,961.60/x
  3. Step 3: Cross multiply
    644,969.20x = 967,453.80 × 495,961.60
  4. Step 4: Simplify right side
    644,969.20x = 479,819,934,574.08
  5. Step 5: Solve for x
    x = 479,819,934,574.08/644,969.20
  6. Step 6: Final answer
    x = 743,942.40

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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.