Home / 727,611.39-1,004,133.99-405,321.42

Finding the Fourth Proportional to 727,611.39, 1,004,133.99 and 405,321.42

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Solution

The fourth proportional to 727,611.39, 1,004,133.99 and 405,321.42 is: 559,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,611.39 : 1,004,133.99 = 405,321.42 : x
  2. Step 2: Convert to fraction form
    727,611.39/1,004,133.99 = 405,321.42/x
  3. Step 3: Cross multiply
    727,611.39x = 1,004,133.99 × 405,321.42
  4. Step 4: Simplify right side
    727,611.39x = 406,997,014,697.07
  5. Step 5: Solve for x
    x = 406,997,014,697.07/727,611.39
  6. Step 6: Final answer
    x = 559,360.42

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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.