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Finding the Fourth Proportional to 640,808.49, 961,278.54 and 241,785.07

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Solution

The fourth proportional to 640,808.49, 961,278.54 and 241,785.07 is: 362,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,808.49 : 961,278.54 = 241,785.07 : x
  2. Step 2: Convert to fraction form
    640,808.49/961,278.54 = 241,785.07/x
  3. Step 3: Cross multiply
    640,808.49x = 961,278.54 × 241,785.07
  4. Step 4: Simplify right side
    640,808.49x = 232,422,799,083.40
  5. Step 5: Solve for x
    x = 232,422,799,083.40/640,808.49
  6. Step 6: Final answer
    x = 362,702.43

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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.