Home / 415,799.48-623,776.15-131,561.58

Finding the Fourth Proportional to 415,799.48, 623,776.15 and 131,561.58

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Solution

The fourth proportional to 415,799.48, 623,776.15 and 131,561.58 is: 197,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,799.48 : 623,776.15 = 131,561.58 : x
  2. Step 2: Convert to fraction form
    415,799.48/623,776.15 = 131,561.58/x
  3. Step 3: Cross multiply
    415,799.48x = 623,776.15 × 131,561.58
  4. Step 4: Simplify right side
    415,799.48x = 82,064,975,860.32
  5. Step 5: Solve for x
    x = 82,064,975,860.32/415,799.48
  6. Step 6: Final answer
    x = 197,366.71

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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.