Home / 538,067.76-742,468.48-308,613.18

Finding the Fourth Proportional to 538,067.76, 742,468.48 and 308,613.18

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Solution

The fourth proportional to 538,067.76, 742,468.48 and 308,613.18 is: 425,848.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,067.76 : 742,468.48 = 308,613.18 : x
  2. Step 2: Convert to fraction form
    538,067.76/742,468.48 = 308,613.18/x
  3. Step 3: Cross multiply
    538,067.76x = 742,468.48 × 308,613.18
  4. Step 4: Simplify right side
    538,067.76x = 229,135,558,662.57
  5. Step 5: Solve for x
    x = 229,135,558,662.57/538,067.76
  6. Step 6: Final answer
    x = 425,848.89

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1.5x scale

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.