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Finding the Fourth Proportional to 665,036.50, 917,750.37 and 363,231.22

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Solution

The fourth proportional to 665,036.50, 917,750.37 and 363,231.22 is: 501,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,036.50 : 917,750.37 = 363,231.22 : x
  2. Step 2: Convert to fraction form
    665,036.50/917,750.37 = 363,231.22/x
  3. Step 3: Cross multiply
    665,036.50x = 917,750.37 × 363,231.22
  4. Step 4: Simplify right side
    665,036.50x = 333,355,586,550.55
  5. Step 5: Solve for x
    x = 333,355,586,550.55/665,036.50
  6. Step 6: Final answer
    x = 501,259.08

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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.