Home / 680,612.25-1,020,946.52-200,840.05

Finding the Fourth Proportional to 680,612.25, 1,020,946.52 and 200,840.05

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Solution

The fourth proportional to 680,612.25, 1,020,946.52 and 200,840.05 is: 301,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,612.25 : 1,020,946.52 = 200,840.05 : x
  2. Step 2: Convert to fraction form
    680,612.25/1,020,946.52 = 200,840.05/x
  3. Step 3: Cross multiply
    680,612.25x = 1,020,946.52 × 200,840.05
  4. Step 4: Simplify right side
    680,612.25x = 205,046,950,124.13
  5. Step 5: Solve for x
    x = 205,046,950,124.13/680,612.25
  6. Step 6: Final answer
    x = 301,268.38

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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.