Home / 818,680.06-1,228,151.31-345,435.13

Finding the Fourth Proportional to 818,680.06, 1,228,151.31 and 345,435.13

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Solution

The fourth proportional to 818,680.06, 1,228,151.31 and 345,435.13 is: 518,208.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,680.06 : 1,228,151.31 = 345,435.13 : x
  2. Step 2: Convert to fraction form
    818,680.06/1,228,151.31 = 345,435.13/x
  3. Step 3: Cross multiply
    818,680.06x = 1,228,151.31 × 345,435.13
  4. Step 4: Simplify right side
    818,680.06x = 424,246,609,612.40
  5. Step 5: Solve for x
    x = 424,246,609,612.40/818,680.06
  6. Step 6: Final answer
    x = 518,208.06

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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.