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Finding the Fourth Proportional to 647,198.49, 893,164.49 and 360,720.63

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Solution

The fourth proportional to 647,198.49, 893,164.49 and 360,720.63 is: 497,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,198.49 : 893,164.49 = 360,720.63 : x
  2. Step 2: Convert to fraction form
    647,198.49/893,164.49 = 360,720.63/x
  3. Step 3: Cross multiply
    647,198.49x = 893,164.49 × 360,720.63
  4. Step 4: Simplify right side
    647,198.49x = 322,182,857,526.43
  5. Step 5: Solve for x
    x = 322,182,857,526.43/647,198.49
  6. Step 6: Final answer
    x = 497,811.51

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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.