Home / 498,435.66-687,407.04-304,696.62

Finding the Fourth Proportional to 498,435.66, 687,407.04 and 304,696.62

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Solution

The fourth proportional to 498,435.66, 687,407.04 and 304,696.62 is: 420,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,435.66 : 687,407.04 = 304,696.62 : x
  2. Step 2: Convert to fraction form
    498,435.66/687,407.04 = 304,696.62/x
  3. Step 3: Cross multiply
    498,435.66x = 687,407.04 × 304,696.62
  4. Step 4: Simplify right side
    498,435.66x = 209,450,601,652.21
  5. Step 5: Solve for x
    x = 209,450,601,652.21/498,435.66
  6. Step 6: Final answer
    x = 420,215.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.