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Finding the Fourth Proportional to 647,374.47, 893,380.58 and 375,604.17

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Solution

The fourth proportional to 647,374.47, 893,380.58 and 375,604.17 is: 518,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,374.47 : 893,380.58 = 375,604.17 : x
  2. Step 2: Convert to fraction form
    647,374.47/893,380.58 = 375,604.17/x
  3. Step 3: Cross multiply
    647,374.47x = 893,380.58 × 375,604.17
  4. Step 4: Simplify right side
    647,374.47x = 335,557,471,245.02
  5. Step 5: Solve for x
    x = 335,557,471,245.02/647,374.47
  6. Step 6: Final answer
    x = 518,335.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.