Home / 683,420.80-1,025,131.20-351,644.80

Finding the Fourth Proportional to 683,420.80, 1,025,131.20 and 351,644.80

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Solution

The fourth proportional to 683,420.80, 1,025,131.20 and 351,644.80 is: 527,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,420.80 : 1,025,131.20 = 351,644.80 : x
  2. Step 2: Convert to fraction form
    683,420.80/1,025,131.20 = 351,644.80/x
  3. Step 3: Cross multiply
    683,420.80x = 1,025,131.20 × 351,644.80
  4. Step 4: Simplify right side
    683,420.80x = 360,482,055,797.76
  5. Step 5: Solve for x
    x = 360,482,055,797.76/683,420.80
  6. Step 6: Final answer
    x = 527,467.20

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Double scale
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Similar ratio
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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.