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Finding the Fourth Proportional to 468,400.16, 646,404.76 and 284,576.16

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Solution

The fourth proportional to 468,400.16, 646,404.76 and 284,576.16 is: 392,722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,400.16 : 646,404.76 = 284,576.16 : x
  2. Step 2: Convert to fraction form
    468,400.16/646,404.76 = 284,576.16/x
  3. Step 3: Cross multiply
    468,400.16x = 646,404.76 × 284,576.16
  4. Step 4: Simplify right side
    468,400.16x = 183,951,384,406.52
  5. Step 5: Solve for x
    x = 183,951,384,406.52/468,400.16
  6. Step 6: Final answer
    x = 392,722.72

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1.5x scale

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.