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Finding the Fourth Proportional to 647,711.26, 893,853.03 and 361,200.58

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Solution

The fourth proportional to 647,711.26, 893,853.03 and 361,200.58 is: 498,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,711.26 : 893,853.03 = 361,200.58 : x
  2. Step 2: Convert to fraction form
    647,711.26/893,853.03 = 361,200.58/x
  3. Step 3: Cross multiply
    647,711.26x = 893,853.03 × 361,200.58
  4. Step 4: Simplify right side
    647,711.26x = 322,860,232,870.76
  5. Step 5: Solve for x
    x = 322,860,232,870.76/647,711.26
  6. Step 6: Final answer
    x = 498,463.21

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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.