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Finding the Fourth Proportional to 607,327.70, 838,462.08 and 403,654.82

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Solution

The fourth proportional to 607,327.70, 838,462.08 and 403,654.82 is: 557,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,327.70 : 838,462.08 = 403,654.82 : x
  2. Step 2: Convert to fraction form
    607,327.70/838,462.08 = 403,654.82/x
  3. Step 3: Cross multiply
    607,327.70x = 838,462.08 × 403,654.82
  4. Step 4: Simplify right side
    607,327.70x = 338,449,259,979.23
  5. Step 5: Solve for x
    x = 338,449,259,979.23/607,327.70
  6. Step 6: Final answer
    x = 557,276.18

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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.