Home / 813,541.02-1,220,172.81-214,508.07

Finding the Fourth Proportional to 813,541.02, 1,220,172.81 and 214,508.07

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Solution

The fourth proportional to 813,541.02, 1,220,172.81 and 214,508.07 is: 321,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,541.02 : 1,220,172.81 = 214,508.07 : x
  2. Step 2: Convert to fraction form
    813,541.02/1,220,172.81 = 214,508.07/x
  3. Step 3: Cross multiply
    813,541.02x = 1,220,172.81 × 214,508.07
  4. Step 4: Simplify right side
    813,541.02x = 261,736,914,539.58
  5. Step 5: Solve for x
    x = 261,736,914,539.58/813,541.02
  6. Step 6: Final answer
    x = 321,725.53

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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.