Home / 628,109.10-941,872.05-272,940.30

Finding the Fourth Proportional to 628,109.10, 941,872.05 and 272,940.30

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Solution

The fourth proportional to 628,109.10, 941,872.05 and 272,940.30 is: 409,283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,109.10 : 941,872.05 = 272,940.30 : x
  2. Step 2: Convert to fraction form
    628,109.10/941,872.05 = 272,940.30/x
  3. Step 3: Cross multiply
    628,109.10x = 941,872.05 × 272,940.30
  4. Step 4: Simplify right side
    628,109.10x = 257,074,839,888.62
  5. Step 5: Solve for x
    x = 257,074,839,888.62/628,109.10
  6. Step 6: Final answer
    x = 409,283.74

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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.