Home / 814,272.40-1,221,408.60-394,368.40

Finding the Fourth Proportional to 814,272.40, 1,221,408.60 and 394,368.40

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Solution

The fourth proportional to 814,272.40, 1,221,408.60 and 394,368.40 is: 591,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,272.40 : 1,221,408.60 = 394,368.40 : x
  2. Step 2: Convert to fraction form
    814,272.40/1,221,408.60 = 394,368.40/x
  3. Step 3: Cross multiply
    814,272.40x = 1,221,408.60 × 394,368.40
  4. Step 4: Simplify right side
    814,272.40x = 481,684,955,328.24
  5. Step 5: Solve for x
    x = 481,684,955,328.24/814,272.40
  6. Step 6: Final answer
    x = 591,552.60

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1.5x scale

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.