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Finding the Fourth Proportional to 647,171.65, 893,127.26 and 360,693.77

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Solution

The fourth proportional to 647,171.65, 893,127.26 and 360,693.77 is: 497,774.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,171.65 : 893,127.26 = 360,693.77 : x
  2. Step 2: Convert to fraction form
    647,171.65/893,127.26 = 360,693.77/x
  3. Step 3: Cross multiply
    647,171.65x = 893,127.26 × 360,693.77
  4. Step 4: Simplify right side
    647,171.65x = 322,145,441,633.72
  5. Step 5: Solve for x
    x = 322,145,441,633.72/647,171.65
  6. Step 6: Final answer
    x = 497,774.34

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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.