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Finding the Fourth Proportional to 647,691.58, 893,578.80 and 375,609.34

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Solution

The fourth proportional to 647,691.58, 893,578.80 and 375,609.34 is: 518,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,691.58 : 893,578.80 = 375,609.34 : x
  2. Step 2: Convert to fraction form
    647,691.58/893,578.80 = 375,609.34/x
  3. Step 3: Cross multiply
    647,691.58x = 893,578.80 × 375,609.34
  4. Step 4: Simplify right side
    647,691.58x = 335,636,543,305.99
  5. Step 5: Solve for x
    x = 335,636,543,305.99/647,691.58
  6. Step 6: Final answer
    x = 518,204.27

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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.