Home / 680,300.70-1,020,598.65-206,973.75

Finding the Fourth Proportional to 680,300.70, 1,020,598.65 and 206,973.75

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Solution

The fourth proportional to 680,300.70, 1,020,598.65 and 206,973.75 is: 310,505.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,300.70 : 1,020,598.65 = 206,973.75 : x
  2. Step 2: Convert to fraction form
    680,300.70/1,020,598.65 = 206,973.75/x
  3. Step 3: Cross multiply
    680,300.70x = 1,020,598.65 × 206,973.75
  4. Step 4: Simplify right side
    680,300.70x = 211,237,129,835.44
  5. Step 5: Solve for x
    x = 211,237,129,835.44/680,300.70
  6. Step 6: Final answer
    x = 310,505.53

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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.