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Finding the Fourth Proportional to 616,760.84, 851,083.26 and 375,009.86

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Solution

The fourth proportional to 616,760.84, 851,083.26 and 375,009.86 is: 517,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,760.84 : 851,083.26 = 375,009.86 : x
  2. Step 2: Convert to fraction form
    616,760.84/851,083.26 = 375,009.86/x
  3. Step 3: Cross multiply
    616,760.84x = 851,083.26 × 375,009.86
  4. Step 4: Simplify right side
    616,760.84x = 319,164,614,180.94
  5. Step 5: Solve for x
    x = 319,164,614,180.94/616,760.84
  6. Step 6: Final answer
    x = 517,485.21

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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.