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Finding the Fourth Proportional to 665,163.42, 917,925.54 and 363,357.42

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Solution

The fourth proportional to 665,163.42, 917,925.54 and 363,357.42 is: 501,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,163.42 : 917,925.54 = 363,357.42 : x
  2. Step 2: Convert to fraction form
    665,163.42/917,925.54 = 363,357.42/x
  3. Step 3: Cross multiply
    665,163.42x = 917,925.54 × 363,357.42
  4. Step 4: Simplify right side
    665,163.42x = 333,535,055,966.51
  5. Step 5: Solve for x
    x = 333,535,055,966.51/665,163.42
  6. Step 6: Final answer
    x = 501,433.25

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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.