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Finding the Fourth Proportional to 564,795.05, 779,426.11 and 306,671.86

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Solution

The fourth proportional to 564,795.05, 779,426.11 and 306,671.86 is: 423,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,795.05 : 779,426.11 = 306,671.86 : x
  2. Step 2: Convert to fraction form
    564,795.05/779,426.11 = 306,671.86/x
  3. Step 3: Cross multiply
    564,795.05x = 779,426.11 × 306,671.86
  4. Step 4: Simplify right side
    564,795.05x = 239,028,054,886.27
  5. Step 5: Solve for x
    x = 239,028,054,886.27/564,795.05
  6. Step 6: Final answer
    x = 423,212.02

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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.