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Finding the Fourth Proportional to 640,995.39, 961,635.24 and 241,639.61

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Solution

The fourth proportional to 640,995.39, 961,635.24 and 241,639.61 is: 362,513.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,995.39 : 961,635.24 = 241,639.61 : x
  2. Step 2: Convert to fraction form
    640,995.39/961,635.24 = 241,639.61/x
  3. Step 3: Cross multiply
    640,995.39x = 961,635.24 × 241,639.61
  4. Step 4: Simplify right side
    640,995.39x = 232,369,159,547.68
  5. Step 5: Solve for x
    x = 232,369,159,547.68/640,995.39
  6. Step 6: Final answer
    x = 362,513.00

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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.