Home / 537,944.64-742,355.28-320,305.20

Finding the Fourth Proportional to 537,944.64, 742,355.28 and 320,305.20

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Solution

The fourth proportional to 537,944.64, 742,355.28 and 320,305.20 is: 442,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,944.64 : 742,355.28 = 320,305.20 : x
  2. Step 2: Convert to fraction form
    537,944.64/742,355.28 = 320,305.20/x
  3. Step 3: Cross multiply
    537,944.64x = 742,355.28 × 320,305.20
  4. Step 4: Simplify right side
    537,944.64x = 237,780,256,431.46
  5. Step 5: Solve for x
    x = 237,780,256,431.46/537,944.64
  6. Step 6: Final answer
    x = 442,016.22

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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.