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Finding the Fourth Proportional to 707,837.95, 976,781.86 and 401,874.22

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Solution

The fourth proportional to 707,837.95, 976,781.86 and 401,874.22 is: 554,566.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,837.95 : 976,781.86 = 401,874.22 : x
  2. Step 2: Convert to fraction form
    707,837.95/976,781.86 = 401,874.22/x
  3. Step 3: Cross multiply
    707,837.95x = 976,781.86 × 401,874.22
  4. Step 4: Simplify right side
    707,837.95x = 392,543,448,097.65
  5. Step 5: Solve for x
    x = 392,543,448,097.65/707,837.95
  6. Step 6: Final answer
    x = 554,566.83

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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.