Home / 463,918.06-639,766.11-302,721.58

Finding the Fourth Proportional to 463,918.06, 639,766.11 and 302,721.58

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Solution

The fourth proportional to 463,918.06, 639,766.11 and 302,721.58 is: 417,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,918.06 : 639,766.11 = 302,721.58 : x
  2. Step 2: Convert to fraction form
    463,918.06/639,766.11 = 302,721.58/x
  3. Step 3: Cross multiply
    463,918.06x = 639,766.11 × 302,721.58
  4. Step 4: Simplify right side
    463,918.06x = 193,671,007,649.65
  5. Step 5: Solve for x
    x = 193,671,007,649.65/463,918.06
  6. Step 6: Final answer
    x = 417,468.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.