Home / 680,090.58-1,020,070.26-206,780.04

Finding the Fourth Proportional to 680,090.58, 1,020,070.26 and 206,780.04

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Solution

The fourth proportional to 680,090.58, 1,020,070.26 and 206,780.04 is: 310,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,090.58 : 1,020,070.26 = 206,780.04 : x
  2. Step 2: Convert to fraction form
    680,090.58/1,020,070.26 = 206,780.04/x
  3. Step 3: Cross multiply
    680,090.58x = 1,020,070.26 × 206,780.04
  4. Step 4: Simplify right side
    680,090.58x = 210,930,169,165.61
  5. Step 5: Solve for x
    x = 210,930,169,165.61/680,090.58
  6. Step 6: Final answer
    x = 310,150.11

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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.