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Finding the Fourth Proportional to 387,737.60, 544,076.80 and 387,737.60

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Solution

The fourth proportional to 387,737.60, 544,076.80 and 387,737.60 is: 544,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,737.60 : 544,076.80 = 387,737.60 : x
  2. Step 2: Convert to fraction form
    387,737.60/544,076.80 = 387,737.60/x
  3. Step 3: Cross multiply
    387,737.60x = 544,076.80 × 387,737.60
  4. Step 4: Simplify right side
    387,737.60x = 210,959,032,647.68
  5. Step 5: Solve for x
    x = 210,959,032,647.68/387,737.60
  6. Step 6: Final answer
    x = 544,076.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.