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Finding the Fourth Proportional to 564,800.56, 779,433.71 and 306,677.36

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Solution

The fourth proportional to 564,800.56, 779,433.71 and 306,677.36 is: 423,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,800.56 : 779,433.71 = 306,677.36 : x
  2. Step 2: Convert to fraction form
    564,800.56/779,433.71 = 306,677.36/x
  3. Step 3: Cross multiply
    564,800.56x = 779,433.71 × 306,677.36
  4. Step 4: Simplify right side
    564,800.56x = 239,034,672,477.81
  5. Step 5: Solve for x
    x = 239,034,672,477.81/564,800.56
  6. Step 6: Final answer
    x = 423,219.61

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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.