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Finding the Fourth Proportional to 487,954.13, 673,792.29 and 306,968.94

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Solution

The fourth proportional to 487,954.13, 673,792.29 and 306,968.94 is: 423,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,954.13 : 673,792.29 = 306,968.94 : x
  2. Step 2: Convert to fraction form
    487,954.13/673,792.29 = 306,968.94/x
  3. Step 3: Cross multiply
    487,954.13x = 673,792.29 × 306,968.94
  4. Step 4: Simplify right side
    487,954.13x = 206,833,305,041.47
  5. Step 5: Solve for x
    x = 206,833,305,041.47/487,954.13
  6. Step 6: Final answer
    x = 423,878.59

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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.