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Finding the Fourth Proportional to 424,775.44, 636,806.04 and 284,104.72

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Solution

The fourth proportional to 424,775.44, 636,806.04 and 284,104.72 is: 425,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,775.44 : 636,806.04 = 284,104.72 : x
  2. Step 2: Convert to fraction form
    424,775.44/636,806.04 = 284,104.72/x
  3. Step 3: Cross multiply
    424,775.44x = 636,806.04 × 284,104.72
  4. Step 4: Simplify right side
    424,775.44x = 180,919,601,688.51
  5. Step 5: Solve for x
    x = 180,919,601,688.51/424,775.44
  6. Step 6: Final answer
    x = 425,918.23

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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.