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Finding the Fourth Proportional to 622,133.35, 932,249.38 and 418,978.27

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Solution

The fourth proportional to 622,133.35, 932,249.38 and 418,978.27 is: 627,827.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,133.35 : 932,249.38 = 418,978.27 : x
  2. Step 2: Convert to fraction form
    622,133.35/932,249.38 = 418,978.27/x
  3. Step 3: Cross multiply
    622,133.35x = 932,249.38 × 418,978.27
  4. Step 4: Simplify right side
    622,133.35x = 390,592,232,774.83
  5. Step 5: Solve for x
    x = 390,592,232,774.83/622,133.35
  6. Step 6: Final answer
    x = 627,827.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.