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Finding the Fourth Proportional to 672,516.81, 928,072.23 and 366,593.78

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Solution

The fourth proportional to 672,516.81, 928,072.23 and 366,593.78 is: 505,898.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,516.81 : 928,072.23 = 366,593.78 : x
  2. Step 2: Convert to fraction form
    672,516.81/928,072.23 = 366,593.78/x
  3. Step 3: Cross multiply
    672,516.81x = 928,072.23 × 366,593.78
  4. Step 4: Simplify right side
    672,516.81x = 340,225,509,916.27
  5. Step 5: Solve for x
    x = 340,225,509,916.27/672,516.81
  6. Step 6: Final answer
    x = 505,898.89

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Double scale
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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.