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Finding the Fourth Proportional to 564,664.95, 779,251.32 and 306,552.51

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Solution

The fourth proportional to 564,664.95, 779,251.32 and 306,552.51 is: 423,049.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,664.95 : 779,251.32 = 306,552.51 : x
  2. Step 2: Convert to fraction form
    564,664.95/779,251.32 = 306,552.51/x
  3. Step 3: Cross multiply
    564,664.95x = 779,251.32 × 306,552.51
  4. Step 4: Simplify right side
    564,664.95x = 238,881,448,066.81
  5. Step 5: Solve for x
    x = 238,881,448,066.81/564,664.95
  6. Step 6: Final answer
    x = 423,049.90

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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.