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Finding the Fourth Proportional to 647,217.30, 893,164.02 and 360,755.55

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Solution

The fourth proportional to 647,217.30, 893,164.02 and 360,755.55 is: 497,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,217.30 : 893,164.02 = 360,755.55 : x
  2. Step 2: Convert to fraction form
    647,217.30/893,164.02 = 360,755.55/x
  3. Step 3: Cross multiply
    647,217.30x = 893,164.02 × 360,755.55
  4. Step 4: Simplify right side
    647,217.30x = 322,213,877,275.31
  5. Step 5: Solve for x
    x = 322,213,877,275.31/647,217.30
  6. Step 6: Final answer
    x = 497,844.97

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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.