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Finding the Fourth Proportional to 503,837.51, 695,244.36 and 310,214.51

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Solution

The fourth proportional to 503,837.51, 695,244.36 and 310,214.51 is: 428,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,837.51 : 695,244.36 = 310,214.51 : x
  2. Step 2: Convert to fraction form
    503,837.51/695,244.36 = 310,214.51/x
  3. Step 3: Cross multiply
    503,837.51x = 695,244.36 × 310,214.51
  4. Step 4: Simplify right side
    503,837.51x = 215,674,888,467.66
  5. Step 5: Solve for x
    x = 215,674,888,467.66/503,837.51
  6. Step 6: Final answer
    x = 428,064.37

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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.