Home / 644,734.80-967,102.20-445,669.20

Finding the Fourth Proportional to 644,734.80, 967,102.20 and 445,669.20

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Solution

The fourth proportional to 644,734.80, 967,102.20 and 445,669.20 is: 668,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,734.80 : 967,102.20 = 445,669.20 : x
  2. Step 2: Convert to fraction form
    644,734.80/967,102.20 = 445,669.20/x
  3. Step 3: Cross multiply
    644,734.80x = 967,102.20 × 445,669.20
  4. Step 4: Simplify right side
    644,734.80x = 431,007,663,792.24
  5. Step 5: Solve for x
    x = 431,007,663,792.24/644,734.80
  6. Step 6: Final answer
    x = 668,503.80

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Double scale
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Similar ratio
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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.