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Finding the Fourth Proportional to 611,695.94, 917,038.76 and 269,896.03

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Solution

The fourth proportional to 611,695.94, 917,038.76 and 269,896.03 is: 404,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,695.94 : 917,038.76 = 269,896.03 : x
  2. Step 2: Convert to fraction form
    611,695.94/917,038.76 = 269,896.03/x
  3. Step 3: Cross multiply
    611,695.94x = 917,038.76 × 269,896.03
  4. Step 4: Simplify right side
    611,695.94x = 247,505,117,038.05
  5. Step 5: Solve for x
    x = 247,505,117,038.05/611,695.94
  6. Step 6: Final answer
    x = 404,621.16

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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.