Home / 680,448.69-1,020,820.64-207,121.74

Finding the Fourth Proportional to 680,448.69, 1,020,820.64 and 207,121.74

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Solution

The fourth proportional to 680,448.69, 1,020,820.64 and 207,121.74 is: 310,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,448.69 : 1,020,820.64 = 207,121.74 : x
  2. Step 2: Convert to fraction form
    680,448.69/1,020,820.64 = 207,121.74/x
  3. Step 3: Cross multiply
    680,448.69x = 1,020,820.64 × 207,121.74
  4. Step 4: Simplify right side
    680,448.69x = 211,434,146,149.11
  5. Step 5: Solve for x
    x = 211,434,146,149.11/680,448.69
  6. Step 6: Final answer
    x = 310,727.54

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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.