Home / 817,488.06-1,225,874.60-412,431.06

Finding the Fourth Proportional to 817,488.06, 1,225,874.60 and 412,431.06

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Solution

The fourth proportional to 817,488.06, 1,225,874.60 and 412,431.06 is: 618,466.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,488.06 : 1,225,874.60 = 412,431.06 : x
  2. Step 2: Convert to fraction form
    817,488.06/1,225,874.60 = 412,431.06/x
  3. Step 3: Cross multiply
    817,488.06x = 1,225,874.60 × 412,431.06
  4. Step 4: Simplify right side
    817,488.06x = 505,588,760,705.08
  5. Step 5: Solve for x
    x = 505,588,760,705.08/817,488.06
  6. Step 6: Final answer
    x = 618,466.23

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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.