Home / 406,051.38-609,135.39-125,590.50

Finding the Fourth Proportional to 406,051.38, 609,135.39 and 125,590.50

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Solution

The fourth proportional to 406,051.38, 609,135.39 and 125,590.50 is: 188,403.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,051.38 : 609,135.39 = 125,590.50 : x
  2. Step 2: Convert to fraction form
    406,051.38/609,135.39 = 125,590.50/x
  3. Step 3: Cross multiply
    406,051.38x = 609,135.39 × 125,590.50
  4. Step 4: Simplify right side
    406,051.38x = 76,501,618,197.80
  5. Step 5: Solve for x
    x = 76,501,618,197.80/406,051.38
  6. Step 6: Final answer
    x = 188,403.79

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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.