Home / 463,012.20-694,518.30-285,719.40

Finding the Fourth Proportional to 463,012.20, 694,518.30 and 285,719.40

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Solution

The fourth proportional to 463,012.20, 694,518.30 and 285,719.40 is: 428,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,012.20 : 694,518.30 = 285,719.40 : x
  2. Step 2: Convert to fraction form
    463,012.20/694,518.30 = 285,719.40/x
  3. Step 3: Cross multiply
    463,012.20x = 694,518.30 × 285,719.40
  4. Step 4: Simplify right side
    463,012.20x = 198,437,351,965.02
  5. Step 5: Solve for x
    x = 198,437,351,965.02/463,012.20
  6. Step 6: Final answer
    x = 428,579.10

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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.