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Finding the Fourth Proportional to 564,001.89, 778,318.37 and 309,351.27

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Solution

The fourth proportional to 564,001.89, 778,318.37 and 309,351.27 is: 426,902.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,001.89 : 778,318.37 = 309,351.27 : x
  2. Step 2: Convert to fraction form
    564,001.89/778,318.37 = 309,351.27/x
  3. Step 3: Cross multiply
    564,001.89x = 778,318.37 × 309,351.27
  4. Step 4: Simplify right side
    564,001.89x = 240,773,774,677.07
  5. Step 5: Solve for x
    x = 240,773,774,677.07/564,001.89
  6. Step 6: Final answer
    x = 426,902.43

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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.