Home / 538,039.81-742,528.50-296,322.32

Finding the Fourth Proportional to 538,039.81, 742,528.50 and 296,322.32

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Solution

The fourth proportional to 538,039.81, 742,528.50 and 296,322.32 is: 408,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,039.81 : 742,528.50 = 296,322.32 : x
  2. Step 2: Convert to fraction form
    538,039.81/742,528.50 = 296,322.32/x
  3. Step 3: Cross multiply
    538,039.81x = 742,528.50 × 296,322.32
  4. Step 4: Simplify right side
    538,039.81x = 220,027,765,929.80
  5. Step 5: Solve for x
    x = 220,027,765,929.80/538,039.81
  6. Step 6: Final answer
    x = 408,943.28

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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.