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Finding the Fourth Proportional to 678,662, 936,592.44 and 376,875.44

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Solution

The fourth proportional to 678,662, 936,592.44 and 376,875.44 is: 520,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,662 : 936,592.44 = 376,875.44 : x
  2. Step 2: Convert to fraction form
    678,662/936,592.44 = 376,875.44/x
  3. Step 3: Cross multiply
    678,662x = 936,592.44 × 376,875.44
  4. Step 4: Simplify right side
    678,662x = 352,978,687,925.67
  5. Step 5: Solve for x
    x = 352,978,687,925.67/678,662
  6. Step 6: Final answer
    x = 520,109.70

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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.