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Finding the Fourth Proportional to 551,591.34, 826,639.58 and 285,538.64

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Solution

The fourth proportional to 551,591.34, 826,639.58 and 285,538.64 is: 427,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,591.34 : 826,639.58 = 285,538.64 : x
  2. Step 2: Convert to fraction form
    551,591.34/826,639.58 = 285,538.64/x
  3. Step 3: Cross multiply
    551,591.34x = 826,639.58 × 285,538.64
  4. Step 4: Simplify right side
    551,591.34x = 236,037,541,443.37
  5. Step 5: Solve for x
    x = 236,037,541,443.37/551,591.34
  6. Step 6: Final answer
    x = 427,921.04

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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.