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Finding the Fourth Proportional to 538,048.13, 742,540.00 and 296,330.64

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Solution

The fourth proportional to 538,048.13, 742,540.00 and 296,330.64 is: 408,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,048.13 : 742,540.00 = 296,330.64 : x
  2. Step 2: Convert to fraction form
    538,048.13/742,540.00 = 296,330.64/x
  3. Step 3: Cross multiply
    538,048.13x = 742,540.00 × 296,330.64
  4. Step 4: Simplify right side
    538,048.13x = 220,037,357,321.37
  5. Step 5: Solve for x
    x = 220,037,357,321.37/538,048.13
  6. Step 6: Final answer
    x = 408,954.78

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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.