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Finding the Fourth Proportional to 647,255.34, 893,242.62 and 360,777.51

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Solution

The fourth proportional to 647,255.34, 893,242.62 and 360,777.51 is: 497,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,255.34 : 893,242.62 = 360,777.51 : x
  2. Step 2: Convert to fraction form
    647,255.34/893,242.62 = 360,777.51/x
  3. Step 3: Cross multiply
    647,255.34x = 893,242.62 × 360,777.51
  4. Step 4: Simplify right side
    647,255.34x = 322,261,848,269.48
  5. Step 5: Solve for x
    x = 322,261,848,269.48/647,255.34
  6. Step 6: Final answer
    x = 497,889.83

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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.