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Finding the Fourth Proportional to 640,741.52, 960,816.42 and 235,832.01

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Solution

The fourth proportional to 640,741.52, 960,816.42 and 235,832.01 is: 353,639.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,741.52 : 960,816.42 = 235,832.01 : x
  2. Step 2: Convert to fraction form
    640,741.52/960,816.42 = 235,832.01/x
  3. Step 3: Cross multiply
    640,741.52x = 960,816.42 × 235,832.01
  4. Step 4: Simplify right side
    640,741.52x = 226,591,267,569.60
  5. Step 5: Solve for x
    x = 226,591,267,569.60/640,741.52
  6. Step 6: Final answer
    x = 353,639.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.