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Finding the Fourth Proportional to 484,576.40, 726,864.60 and 284,992.40

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Solution

The fourth proportional to 484,576.40, 726,864.60 and 284,992.40 is: 427,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,576.40 : 726,864.60 = 284,992.40 : x
  2. Step 2: Convert to fraction form
    484,576.40/726,864.60 = 284,992.40/x
  3. Step 3: Cross multiply
    484,576.40x = 726,864.60 × 284,992.40
  4. Step 4: Simplify right side
    484,576.40x = 207,150,886,829.04
  5. Step 5: Solve for x
    x = 207,150,886,829.04/484,576.40
  6. Step 6: Final answer
    x = 427,488.60

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Similar ratio
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1.5x scale

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.