Home / 387,564.48-580,836.42-207,629.06

Finding the Fourth Proportional to 387,564.48, 580,836.42 and 207,629.06

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Solution

The fourth proportional to 387,564.48, 580,836.42 and 207,629.06 is: 311,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,564.48 : 580,836.42 = 207,629.06 : x
  2. Step 2: Convert to fraction form
    387,564.48/580,836.42 = 207,629.06/x
  3. Step 3: Cross multiply
    387,564.48x = 580,836.42 × 207,629.06
  4. Step 4: Simplify right side
    387,564.48x = 120,598,516,994.18
  5. Step 5: Solve for x
    x = 120,598,516,994.18/387,564.48
  6. Step 6: Final answer
    x = 311,170.20

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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.