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Finding the Fourth Proportional to 564,991.68, 779,495.40 and 323,186.16

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Solution

The fourth proportional to 564,991.68, 779,495.40 and 323,186.16 is: 445,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,991.68 : 779,495.40 = 323,186.16 : x
  2. Step 2: Convert to fraction form
    564,991.68/779,495.40 = 323,186.16/x
  3. Step 3: Cross multiply
    564,991.68x = 779,495.40 × 323,186.16
  4. Step 4: Simplify right side
    564,991.68x = 251,922,125,063.66
  5. Step 5: Solve for x
    x = 251,922,125,063.66/564,991.68
  6. Step 6: Final answer
    x = 445,886.43

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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.