Home / 680,057.60-1,020,124.80-206,758.40

Finding the Fourth Proportional to 680,057.60, 1,020,124.80 and 206,758.40

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Solution

The fourth proportional to 680,057.60, 1,020,124.80 and 206,758.40 is: 310,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,057.60 : 1,020,124.80 = 206,758.40 : x
  2. Step 2: Convert to fraction form
    680,057.60/1,020,124.80 = 206,758.40/x
  3. Step 3: Cross multiply
    680,057.60x = 1,020,124.80 × 206,758.40
  4. Step 4: Simplify right side
    680,057.60x = 210,919,371,448.32
  5. Step 5: Solve for x
    x = 210,919,371,448.32/680,057.60
  6. Step 6: Final answer
    x = 310,149.27

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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.