Home / 467,815.20-702,068.40-309,991.20

Finding the Fourth Proportional to 467,815.20, 702,068.40 and 309,991.20

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Solution

The fourth proportional to 467,815.20, 702,068.40 and 309,991.20 is: 465,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,815.20 : 702,068.40 = 309,991.20 : x
  2. Step 2: Convert to fraction form
    467,815.20/702,068.40 = 309,991.20/x
  3. Step 3: Cross multiply
    467,815.20x = 702,068.40 × 309,991.20
  4. Step 4: Simplify right side
    467,815.20x = 217,635,025,798.08
  5. Step 5: Solve for x
    x = 217,635,025,798.08/467,815.20
  6. Step 6: Final answer
    x = 465,215.81

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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.