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Finding the Fourth Proportional to 362,042.08, 543,460.40 and 287,640.48

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Solution

The fourth proportional to 362,042.08, 543,460.40 and 287,640.48 is: 431,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,042.08 : 543,460.40 = 287,640.48 : x
  2. Step 2: Convert to fraction form
    362,042.08/543,460.40 = 287,640.48/x
  3. Step 3: Cross multiply
    362,042.08x = 543,460.40 × 287,640.48
  4. Step 4: Simplify right side
    362,042.08x = 156,321,210,316.99
  5. Step 5: Solve for x
    x = 156,321,210,316.99/362,042.08
  6. Step 6: Final answer
    x = 431,776.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.