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Finding the Fourth Proportional to 707,820.06, 976,758.03 and 385,528.62

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Solution

The fourth proportional to 707,820.06, 976,758.03 and 385,528.62 is: 532,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,820.06 : 976,758.03 = 385,528.62 : x
  2. Step 2: Convert to fraction form
    707,820.06/976,758.03 = 385,528.62/x
  3. Step 3: Cross multiply
    707,820.06x = 976,758.03 × 385,528.62
  4. Step 4: Simplify right side
    707,820.06x = 376,568,175,379.82
  5. Step 5: Solve for x
    x = 376,568,175,379.82/707,820.06
  6. Step 6: Final answer
    x = 532,011.17

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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.