Home / 418,723.02-628,346.97-219,203.01

Finding the Fourth Proportional to 418,723.02, 628,346.97 and 219,203.01

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Solution

The fourth proportional to 418,723.02, 628,346.97 and 219,203.01 is: 328,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,723.02 : 628,346.97 = 219,203.01 : x
  2. Step 2: Convert to fraction form
    418,723.02/628,346.97 = 219,203.01/x
  3. Step 3: Cross multiply
    418,723.02x = 628,346.97 × 219,203.01
  4. Step 4: Simplify right side
    418,723.02x = 137,735,547,148.38
  5. Step 5: Solve for x
    x = 137,735,547,148.38/418,723.02
  6. Step 6: Final answer
    x = 328,941.90

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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.