Home / 801,098.40-1,201,216.58-321,085.32

Finding the Fourth Proportional to 801,098.40, 1,201,216.58 and 321,085.32

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Solution

The fourth proportional to 801,098.40, 1,201,216.58 and 321,085.32 is: 481,455.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,098.40 : 1,201,216.58 = 321,085.32 : x
  2. Step 2: Convert to fraction form
    801,098.40/1,201,216.58 = 321,085.32/x
  3. Step 3: Cross multiply
    801,098.40x = 1,201,216.58 × 321,085.32
  4. Step 4: Simplify right side
    801,098.40x = 385,693,009,978.61
  5. Step 5: Solve for x
    x = 385,693,009,978.61/801,098.40
  6. Step 6: Final answer
    x = 481,455.22

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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.