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Finding the Fourth Proportional to 694,871, 958,921.98 and 376,919

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Solution

The fourth proportional to 694,871, 958,921.98 and 376,919 is: 520,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,871 : 958,921.98 = 376,919 : x
  2. Step 2: Convert to fraction form
    694,871/958,921.98 = 376,919/x
  3. Step 3: Cross multiply
    694,871x = 958,921.98 × 376,919
  4. Step 4: Simplify right side
    694,871x = 361,435,913,779.62
  5. Step 5: Solve for x
    x = 361,435,913,779.62/694,871
  6. Step 6: Final answer
    x = 520,148.22

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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.