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Finding the Fourth Proportional to 640,835.62, 961,319.13 and 241,812.16

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Solution

The fourth proportional to 640,835.62, 961,319.13 and 241,812.16 is: 362,743.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,835.62 : 961,319.13 = 241,812.16 : x
  2. Step 2: Convert to fraction form
    640,835.62/961,319.13 = 241,812.16/x
  3. Step 3: Cross multiply
    640,835.62x = 961,319.13 × 241,812.16
  4. Step 4: Simplify right side
    640,835.62x = 232,458,655,274.62
  5. Step 5: Solve for x
    x = 232,458,655,274.62/640,835.62
  6. Step 6: Final answer
    x = 362,743.03

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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.