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Finding the Fourth Proportional to 647,747.41, 893,886.43 and 357,371.22

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Solution

The fourth proportional to 647,747.41, 893,886.43 and 357,371.22 is: 493,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,747.41 : 893,886.43 = 357,371.22 : x
  2. Step 2: Convert to fraction form
    647,747.41/893,886.43 = 357,371.22/x
  3. Step 3: Cross multiply
    647,747.41x = 893,886.43 × 357,371.22
  4. Step 4: Simplify right side
    647,747.41x = 319,449,284,030.55
  5. Step 5: Solve for x
    x = 319,449,284,030.55/647,747.41
  6. Step 6: Final answer
    x = 493,169.53

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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.