Home / 908,125.60-1,361,216.40-308,531.20

Finding the Fourth Proportional to 908,125.60, 1,361,216.40 and 308,531.20

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Solution

The fourth proportional to 908,125.60, 1,361,216.40 and 308,531.20 is: 462,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,125.60 : 1,361,216.40 = 308,531.20 : x
  2. Step 2: Convert to fraction form
    908,125.60/1,361,216.40 = 308,531.20/x
  3. Step 3: Cross multiply
    908,125.60x = 1,361,216.40 × 308,531.20
  4. Step 4: Simplify right side
    908,125.60x = 419,977,729,351.68
  5. Step 5: Solve for x
    x = 419,977,729,351.68/908,125.60
  6. Step 6: Final answer
    x = 462,466.57

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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.