Home / 431,569.80-648,035.10-254,212.20

Finding the Fourth Proportional to 431,569.80, 648,035.10 and 254,212.20

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Solution

The fourth proportional to 431,569.80, 648,035.10 and 254,212.20 is: 381,719.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569.80 : 648,035.10 = 254,212.20 : x
  2. Step 2: Convert to fraction form
    431,569.80/648,035.10 = 254,212.20/x
  3. Step 3: Cross multiply
    431,569.80x = 648,035.10 × 254,212.20
  4. Step 4: Simplify right side
    431,569.80x = 164,738,428,448.22
  5. Step 5: Solve for x
    x = 164,738,428,448.22/431,569.80
  6. Step 6: Final answer
    x = 381,719.08

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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.