Home / 816,214.40-1,224,333.75-283,753.61

Finding the Fourth Proportional to 816,214.40, 1,224,333.75 and 283,753.61

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Solution

The fourth proportional to 816,214.40, 1,224,333.75 and 283,753.61 is: 425,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,214.40 : 1,224,333.75 = 283,753.61 : x
  2. Step 2: Convert to fraction form
    816,214.40/1,224,333.75 = 283,753.61/x
  3. Step 3: Cross multiply
    816,214.40x = 1,224,333.75 × 283,753.61
  4. Step 4: Simplify right side
    816,214.40x = 347,409,121,407.34
  5. Step 5: Solve for x
    x = 347,409,121,407.34/816,214.40
  6. Step 6: Final answer
    x = 425,634.64

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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.