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Finding the Fourth Proportional to 564,188.45, 778,580.04 and 322,476.21

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Solution

The fourth proportional to 564,188.45, 778,580.04 and 322,476.21 is: 445,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,188.45 : 778,580.04 = 322,476.21 : x
  2. Step 2: Convert to fraction form
    564,188.45/778,580.04 = 322,476.21/x
  3. Step 3: Cross multiply
    564,188.45x = 778,580.04 × 322,476.21
  4. Step 4: Simplify right side
    564,188.45x = 251,073,540,480.85
  5. Step 5: Solve for x
    x = 251,073,540,480.85/564,188.45
  6. Step 6: Final answer
    x = 445,017.16

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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.