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Finding the Fourth Proportional to 612,356.81, 845,076.75 and 336,737.27

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Solution

The fourth proportional to 612,356.81, 845,076.75 and 336,737.27 is: 464,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,356.81 : 845,076.75 = 336,737.27 : x
  2. Step 2: Convert to fraction form
    612,356.81/845,076.75 = 336,737.27/x
  3. Step 3: Cross multiply
    612,356.81x = 845,076.75 × 336,737.27
  4. Step 4: Simplify right side
    612,356.81x = 284,568,833,831.84
  5. Step 5: Solve for x
    x = 284,568,833,831.84/612,356.81
  6. Step 6: Final answer
    x = 464,710.82

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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.