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Finding the Fourth Proportional to 647,290.54, 893,223.05 and 371,584.06

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Solution

The fourth proportional to 647,290.54, 893,223.05 and 371,584.06 is: 512,764.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,290.54 : 893,223.05 = 371,584.06 : x
  2. Step 2: Convert to fraction form
    647,290.54/893,223.05 = 371,584.06/x
  3. Step 3: Cross multiply
    647,290.54x = 893,223.05 × 371,584.06
  4. Step 4: Simplify right side
    647,290.54x = 331,907,443,313.61
  5. Step 5: Solve for x
    x = 331,907,443,313.61/647,290.54
  6. Step 6: Final answer
    x = 512,764.24

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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.