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Finding the Fourth Proportional to 454,987.36, 628,083.88 and 293,920.88

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Solution

The fourth proportional to 454,987.36, 628,083.88 and 293,920.88 is: 405,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,987.36 : 628,083.88 = 293,920.88 : x
  2. Step 2: Convert to fraction form
    454,987.36/628,083.88 = 293,920.88/x
  3. Step 3: Cross multiply
    454,987.36x = 628,083.88 × 293,920.88
  4. Step 4: Simplify right side
    454,987.36x = 184,606,966,723.41
  5. Step 5: Solve for x
    x = 184,606,966,723.41/454,987.36
  6. Step 6: Final answer
    x = 405,740.87

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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.