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Finding the Fourth Proportional to 424,774.19, 636,804.17 and 284,103.47

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Solution

The fourth proportional to 424,774.19, 636,804.17 and 284,103.47 is: 425,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,774.19 : 636,804.17 = 284,103.47 : x
  2. Step 2: Convert to fraction form
    424,774.19/636,804.17 = 284,103.47/x
  3. Step 3: Cross multiply
    424,774.19x = 636,804.17 × 284,103.47
  4. Step 4: Simplify right side
    424,774.19x = 180,918,272,986.95
  5. Step 5: Solve for x
    x = 180,918,272,986.95/424,774.19
  6. Step 6: Final answer
    x = 425,916.35

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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.