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Finding the Fourth Proportional to 659,350.56, 909,941.90 and 368,959.59

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Solution

The fourth proportional to 659,350.56, 909,941.90 and 368,959.59 is: 509,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,350.56 : 909,941.90 = 368,959.59 : x
  2. Step 2: Convert to fraction form
    659,350.56/909,941.90 = 368,959.59/x
  3. Step 3: Cross multiply
    659,350.56x = 909,941.90 × 368,959.59
  4. Step 4: Simplify right side
    659,350.56x = 335,731,787,857.94
  5. Step 5: Solve for x
    x = 335,731,787,857.94/659,350.56
  6. Step 6: Final answer
    x = 509,185.57

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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.