Home / 538,275.54-742,927.82-308,987.83

Finding the Fourth Proportional to 538,275.54, 742,927.82 and 308,987.83

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Solution

The fourth proportional to 538,275.54, 742,927.82 and 308,987.83 is: 426,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,275.54 : 742,927.82 = 308,987.83 : x
  2. Step 2: Convert to fraction form
    538,275.54/742,927.82 = 308,987.83/x
  3. Step 3: Cross multiply
    538,275.54x = 742,927.82 × 308,987.83
  4. Step 4: Simplify right side
    538,275.54x = 229,555,654,948.43
  5. Step 5: Solve for x
    x = 229,555,654,948.43/538,275.54
  6. Step 6: Final answer
    x = 426,464.96

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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.