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Finding the Fourth Proportional to 647,391.42, 893,397.33 and 375,514.38

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Solution

The fourth proportional to 647,391.42, 893,397.33 and 375,514.38 is: 518,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,391.42 : 893,397.33 = 375,514.38 : x
  2. Step 2: Convert to fraction form
    647,391.42/893,397.33 = 375,514.38/x
  3. Step 3: Cross multiply
    647,391.42x = 893,397.33 × 375,514.38
  4. Step 4: Simplify right side
    647,391.42x = 335,483,544,468.61
  5. Step 5: Solve for x
    x = 335,483,544,468.61/647,391.42
  6. Step 6: Final answer
    x = 518,208.20

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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.