Home / 538,275.29-742,927.48-308,987.58

Finding the Fourth Proportional to 538,275.29, 742,927.48 and 308,987.58

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Solution

The fourth proportional to 538,275.29, 742,927.48 and 308,987.58 is: 426,464.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,275.29 : 742,927.48 = 308,987.58 : x
  2. Step 2: Convert to fraction form
    538,275.29/742,927.48 = 308,987.58/x
  3. Step 3: Cross multiply
    538,275.29x = 742,927.48 × 308,987.58
  4. Step 4: Simplify right side
    538,275.29x = 229,555,363,388.23
  5. Step 5: Solve for x
    x = 229,555,363,388.23/538,275.29
  6. Step 6: Final answer
    x = 426,464.61

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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.