Home / 395,982.10-545,926.66-314,580.45

Finding the Fourth Proportional to 395,982.10, 545,926.66 and 314,580.45

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Solution

The fourth proportional to 395,982.10, 545,926.66 and 314,580.45 is: 433,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,982.10 : 545,926.66 = 314,580.45 : x
  2. Step 2: Convert to fraction form
    395,982.10/545,926.66 = 314,580.45/x
  3. Step 3: Cross multiply
    395,982.10x = 545,926.66 × 314,580.45
  4. Step 4: Simplify right side
    395,982.10x = 171,737,854,369.80
  5. Step 5: Solve for x
    x = 171,737,854,369.80/395,982.10
  6. Step 6: Final answer
    x = 433,701.05

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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.