Home / 538,037.03-742,467.15-308,429.71

Finding the Fourth Proportional to 538,037.03, 742,467.15 and 308,429.71

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Solution

The fourth proportional to 538,037.03, 742,467.15 and 308,429.71 is: 425,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,037.03 : 742,467.15 = 308,429.71 : x
  2. Step 2: Convert to fraction form
    538,037.03/742,467.15 = 308,429.71/x
  3. Step 3: Cross multiply
    538,037.03x = 742,467.15 × 308,429.71
  4. Step 4: Simplify right side
    538,037.03x = 228,998,922,504.54
  5. Step 5: Solve for x
    x = 228,998,922,504.54/538,037.03
  6. Step 6: Final answer
    x = 425,619.26

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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.