Home / 818,528.49-1,227,959.19-345,215.52

Finding the Fourth Proportional to 818,528.49, 1,227,959.19 and 345,215.52

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Solution

The fourth proportional to 818,528.49, 1,227,959.19 and 345,215.52 is: 517,893.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,528.49 : 1,227,959.19 = 345,215.52 : x
  2. Step 2: Convert to fraction form
    818,528.49/1,227,959.19 = 345,215.52/x
  3. Step 3: Cross multiply
    818,528.49x = 1,227,959.19 × 345,215.52
  4. Step 4: Simplify right side
    818,528.49x = 423,910,570,314.63
  5. Step 5: Solve for x
    x = 423,910,570,314.63/818,528.49
  6. Step 6: Final answer
    x = 517,893.48

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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.