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Finding the Fourth Proportional to 564,685.92, 779,044.34 and 322,838.58

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Solution

The fourth proportional to 564,685.92, 779,044.34 and 322,838.58 is: 445,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,685.92 : 779,044.34 = 322,838.58 : x
  2. Step 2: Convert to fraction form
    564,685.92/779,044.34 = 322,838.58/x
  3. Step 3: Cross multiply
    564,685.92x = 779,044.34 × 322,838.58
  4. Step 4: Simplify right side
    564,685.92x = 251,505,568,482.64
  5. Step 5: Solve for x
    x = 251,505,568,482.64/564,685.92
  6. Step 6: Final answer
    x = 445,390.19

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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.