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Finding the Fourth Proportional to 404,774.44, 607,143.66 and 138,558.76

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Solution

The fourth proportional to 404,774.44, 607,143.66 and 138,558.76 is: 207,831.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,774.44 : 607,143.66 = 138,558.76 : x
  2. Step 2: Convert to fraction form
    404,774.44/607,143.66 = 138,558.76/x
  3. Step 3: Cross multiply
    404,774.44x = 607,143.66 × 138,558.76
  4. Step 4: Simplify right side
    404,774.44x = 84,125,072,671.46
  5. Step 5: Solve for x
    x = 84,125,072,671.46/404,774.44
  6. Step 6: Final answer
    x = 207,831.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.