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Finding the Fourth Proportional to 651,611.64, 899,223.48 and 361,241.76

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Solution

The fourth proportional to 651,611.64, 899,223.48 and 361,241.76 is: 498,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,611.64 : 899,223.48 = 361,241.76 : x
  2. Step 2: Convert to fraction form
    651,611.64/899,223.48 = 361,241.76/x
  3. Step 3: Cross multiply
    651,611.64x = 899,223.48 × 361,241.76
  4. Step 4: Simplify right side
    651,611.64x = 324,837,072,548.53
  5. Step 5: Solve for x
    x = 324,837,072,548.53/651,611.64
  6. Step 6: Final answer
    x = 498,513.31

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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.