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Finding the Fourth Proportional to 647,755.68, 893,904.39 and 361,294.32

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Solution

The fourth proportional to 647,755.68, 893,904.39 and 361,294.32 is: 498,587.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,755.68 : 893,904.39 = 361,294.32 : x
  2. Step 2: Convert to fraction form
    647,755.68/893,904.39 = 361,294.32/x
  3. Step 3: Cross multiply
    647,755.68x = 893,904.39 × 361,294.32
  4. Step 4: Simplify right side
    647,755.68x = 322,962,578,730.07
  5. Step 5: Solve for x
    x = 322,962,578,730.07/647,755.68
  6. Step 6: Final answer
    x = 498,587.03

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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.