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Finding the Fourth Proportional to 665,532.60, 918,435.26 and 363,726.60

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Solution

The fourth proportional to 665,532.60, 918,435.26 and 363,726.60 is: 501,942.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,532.60 : 918,435.26 = 363,726.60 : x
  2. Step 2: Convert to fraction form
    665,532.60/918,435.26 = 363,726.60/x
  3. Step 3: Cross multiply
    665,532.60x = 918,435.26 × 363,726.60
  4. Step 4: Simplify right side
    665,532.60x = 334,059,334,439.92
  5. Step 5: Solve for x
    x = 334,059,334,439.92/665,532.60
  6. Step 6: Final answer
    x = 501,942.86

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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.