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Finding the Fourth Proportional to 479,967.92, 662,436.92 and 278,880.56

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Solution

The fourth proportional to 479,967.92, 662,436.92 and 278,880.56 is: 384,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,967.92 : 662,436.92 = 278,880.56 : x
  2. Step 2: Convert to fraction form
    479,967.92/662,436.92 = 278,880.56/x
  3. Step 3: Cross multiply
    479,967.92x = 662,436.92 × 278,880.56
  4. Step 4: Simplify right side
    479,967.92x = 184,740,779,214.28
  5. Step 5: Solve for x
    x = 184,740,779,214.28/479,967.92
  6. Step 6: Final answer
    x = 384,902.35

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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.