Home / 576,928.72-861,795.37-427,460.94

Finding the Fourth Proportional to 576,928.72, 861,795.37 and 427,460.94

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Solution

The fourth proportional to 576,928.72, 861,795.37 and 427,460.94 is: 638,525.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,928.72 : 861,795.37 = 427,460.94 : x
  2. Step 2: Convert to fraction form
    576,928.72/861,795.37 = 427,460.94/x
  3. Step 3: Cross multiply
    576,928.72x = 861,795.37 × 427,460.94
  4. Step 4: Simplify right side
    576,928.72x = 368,383,858,947.85
  5. Step 5: Solve for x
    x = 368,383,858,947.85/576,928.72
  6. Step 6: Final answer
    x = 638,525.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.