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Finding the Fourth Proportional to 579,280.86, 867,790.04 and 275,242.32

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Solution

The fourth proportional to 579,280.86, 867,790.04 and 275,242.32 is: 412,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,280.86 : 867,790.04 = 275,242.32 : x
  2. Step 2: Convert to fraction form
    579,280.86/867,790.04 = 275,242.32/x
  3. Step 3: Cross multiply
    579,280.86x = 867,790.04 × 275,242.32
  4. Step 4: Simplify right side
    579,280.86x = 238,852,542,506.28
  5. Step 5: Solve for x
    x = 238,852,542,506.28/579,280.86
  6. Step 6: Final answer
    x = 412,325.97

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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.