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Finding the Fourth Proportional to 639,610.04, 957,885.51 and 368,917.59

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Solution

The fourth proportional to 639,610.04, 957,885.51 and 368,917.59 is: 552,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,610.04 : 957,885.51 = 368,917.59 : x
  2. Step 2: Convert to fraction form
    639,610.04/957,885.51 = 368,917.59/x
  3. Step 3: Cross multiply
    639,610.04x = 957,885.51 × 368,917.59
  4. Step 4: Simplify right side
    639,610.04x = 353,380,813,432.53
  5. Step 5: Solve for x
    x = 353,380,813,432.53/639,610.04
  6. Step 6: Final answer
    x = 552,494.17

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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.