Home / 805,028.40-1,207,688.40-404,661.60

Finding the Fourth Proportional to 805,028.40, 1,207,688.40 and 404,661.60

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Solution

The fourth proportional to 805,028.40, 1,207,688.40 and 404,661.60 is: 607,065.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,028.40 : 1,207,688.40 = 404,661.60 : x
  2. Step 2: Convert to fraction form
    805,028.40/1,207,688.40 = 404,661.60/x
  3. Step 3: Cross multiply
    805,028.40x = 1,207,688.40 × 404,661.60
  4. Step 4: Simplify right side
    805,028.40x = 488,705,120,245.44
  5. Step 5: Solve for x
    x = 488,705,120,245.44/805,028.40
  6. Step 6: Final answer
    x = 607,065.69

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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.