Home / 694,916.20-1,042,374.30-427,810.60

Finding the Fourth Proportional to 694,916.20, 1,042,374.30 and 427,810.60

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Solution

The fourth proportional to 694,916.20, 1,042,374.30 and 427,810.60 is: 641,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,916.20 : 1,042,374.30 = 427,810.60 : x
  2. Step 2: Convert to fraction form
    694,916.20/1,042,374.30 = 427,810.60/x
  3. Step 3: Cross multiply
    694,916.20x = 1,042,374.30 × 427,810.60
  4. Step 4: Simplify right side
    694,916.20x = 445,938,774,707.58
  5. Step 5: Solve for x
    x = 445,938,774,707.58/694,916.20
  6. Step 6: Final answer
    x = 641,715.90

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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.