Home / 682,930.20-1,025,172.90-402,605.40

Finding the Fourth Proportional to 682,930.20, 1,025,172.90 and 402,605.40

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Solution

The fourth proportional to 682,930.20, 1,025,172.90 and 402,605.40 is: 604,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,930.20 : 1,025,172.90 = 402,605.40 : x
  2. Step 2: Convert to fraction form
    682,930.20/1,025,172.90 = 402,605.40/x
  3. Step 3: Cross multiply
    682,930.20x = 1,025,172.90 × 402,605.40
  4. Step 4: Simplify right side
    682,930.20x = 412,740,145,473.66
  5. Step 5: Solve for x
    x = 412,740,145,473.66/682,930.20
  6. Step 6: Final answer
    x = 604,366.52

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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.