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Finding the Fourth Proportional to 647,321.50, 893,352.32 and 375,387.03

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Solution

The fourth proportional to 647,321.50, 893,352.32 and 375,387.03 is: 518,062.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,321.50 : 893,352.32 = 375,387.03 : x
  2. Step 2: Convert to fraction form
    647,321.50/893,352.32 = 375,387.03/x
  3. Step 3: Cross multiply
    647,321.50x = 893,352.32 × 375,387.03
  4. Step 4: Simplify right side
    647,321.50x = 335,352,874,148.41
  5. Step 5: Solve for x
    x = 335,352,874,148.41/647,321.50
  6. Step 6: Final answer
    x = 518,062.31

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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.