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Finding the Fourth Proportional to 665,028, 917,743.50 and 363,222

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Solution

The fourth proportional to 665,028, 917,743.50 and 363,222 is: 501,249.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,028 : 917,743.50 = 363,222 : x
  2. Step 2: Convert to fraction form
    665,028/917,743.50 = 363,222/x
  3. Step 3: Cross multiply
    665,028x = 917,743.50 × 363,222
  4. Step 4: Simplify right side
    665,028x = 333,344,629,557
  5. Step 5: Solve for x
    x = 333,344,629,557/665,028
  6. Step 6: Final answer
    x = 501,249.01

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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.