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Finding the Fourth Proportional to 478,936.78, 660,962.52 and 264,076.51

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Solution

The fourth proportional to 478,936.78, 660,962.52 and 264,076.51 is: 364,441.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,936.78 : 660,962.52 = 264,076.51 : x
  2. Step 2: Convert to fraction form
    478,936.78/660,962.52 = 264,076.51/x
  3. Step 3: Cross multiply
    478,936.78x = 660,962.52 × 264,076.51
  4. Step 4: Simplify right side
    478,936.78x = 174,544,675,522.41
  5. Step 5: Solve for x
    x = 174,544,675,522.41/478,936.78
  6. Step 6: Final answer
    x = 364,441.99

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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.