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Finding the Fourth Proportional to 647,193.40, 893,102.51 and 375,272.75

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Solution

The fourth proportional to 647,193.40, 893,102.51 and 375,272.75 is: 517,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,193.40 : 893,102.51 = 375,272.75 : x
  2. Step 2: Convert to fraction form
    647,193.40/893,102.51 = 375,272.75/x
  3. Step 3: Cross multiply
    647,193.40x = 893,102.51 × 375,272.75
  4. Step 4: Simplify right side
    647,193.40x = 335,157,036,723.27
  5. Step 5: Solve for x
    x = 335,157,036,723.27/647,193.40
  6. Step 6: Final answer
    x = 517,862.26

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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.