Home / 403,727.10-606,902.85-345,990.30

Finding the Fourth Proportional to 403,727.10, 606,902.85 and 345,990.30

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Solution

The fourth proportional to 403,727.10, 606,902.85 and 345,990.30 is: 520,109.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,727.10 : 606,902.85 = 345,990.30 : x
  2. Step 2: Convert to fraction form
    403,727.10/606,902.85 = 345,990.30/x
  3. Step 3: Cross multiply
    403,727.10x = 606,902.85 × 345,990.30
  4. Step 4: Simplify right side
    403,727.10x = 209,982,499,142.36
  5. Step 5: Solve for x
    x = 209,982,499,142.36/403,727.10
  6. Step 6: Final answer
    x = 520,109.99

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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.