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Finding the Fourth Proportional to 564,681.17, 779,403.94 and 323,039.54

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Solution

The fourth proportional to 564,681.17, 779,403.94 and 323,039.54 is: 445,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,681.17 : 779,403.94 = 323,039.54 : x
  2. Step 2: Convert to fraction form
    564,681.17/779,403.94 = 323,039.54/x
  3. Step 3: Cross multiply
    564,681.17x = 779,403.94 × 323,039.54
  4. Step 4: Simplify right side
    564,681.17x = 251,778,291,392.70
  5. Step 5: Solve for x
    x = 251,778,291,392.70/564,681.17
  6. Step 6: Final answer
    x = 445,876.90

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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.