Home / 659,380.39-909,744.02-368,961.82

Finding the Fourth Proportional to 659,380.39, 909,744.02 and 368,961.82

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Solution

The fourth proportional to 659,380.39, 909,744.02 and 368,961.82 is: 509,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,380.39 : 909,744.02 = 368,961.82 : x
  2. Step 2: Convert to fraction form
    659,380.39/909,744.02 = 368,961.82/x
  3. Step 3: Cross multiply
    659,380.39x = 909,744.02 × 368,961.82
  4. Step 4: Simplify right side
    659,380.39x = 335,660,809,353.32
  5. Step 5: Solve for x
    x = 335,660,809,353.32/659,380.39
  6. Step 6: Final answer
    x = 509,054.89

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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.