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Finding the Fourth Proportional to 707,625.28, 976,523 and 385,335.28

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Solution

The fourth proportional to 707,625.28, 976,523 and 385,335.28 is: 531,762.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,625.28 : 976,523 = 385,335.28 : x
  2. Step 2: Convert to fraction form
    707,625.28/976,523 = 385,335.28/x
  3. Step 3: Cross multiply
    707,625.28x = 976,523 × 385,335.28
  4. Step 4: Simplify right side
    707,625.28x = 376,288,763,631.44
  5. Step 5: Solve for x
    x = 376,288,763,631.44/707,625.28
  6. Step 6: Final answer
    x = 531,762.75

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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.