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Finding the Fourth Proportional to 640,930.02, 961,393.80 and 241,660.38

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Solution

The fourth proportional to 640,930.02, 961,393.80 and 241,660.38 is: 362,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,930.02 : 961,393.80 = 241,660.38 : x
  2. Step 2: Convert to fraction form
    640,930.02/961,393.80 = 241,660.38/x
  3. Step 3: Cross multiply
    640,930.02x = 961,393.80 × 241,660.38
  4. Step 4: Simplify right side
    640,930.02x = 232,330,791,037.64
  5. Step 5: Solve for x
    x = 232,330,791,037.64/640,930.02
  6. Step 6: Final answer
    x = 362,490.11

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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.