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Finding the Fourth Proportional to 647,495.27, 893,548.75 and 361,034.72

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Solution

The fourth proportional to 647,495.27, 893,548.75 and 361,034.72 is: 498,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,495.27 : 893,548.75 = 361,034.72 : x
  2. Step 2: Convert to fraction form
    647,495.27/893,548.75 = 361,034.72/x
  3. Step 3: Cross multiply
    647,495.27x = 893,548.75 × 361,034.72
  4. Step 4: Simplify right side
    647,495.27x = 322,602,118,294.86
  5. Step 5: Solve for x
    x = 322,602,118,294.86/647,495.27
  6. Step 6: Final answer
    x = 498,230.85

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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.