Home / 680,039.69-1,020,022.61-206,688.14

Finding the Fourth Proportional to 680,039.69, 1,020,022.61 and 206,688.14

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Solution

The fourth proportional to 680,039.69, 1,020,022.61 and 206,688.14 is: 310,020.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,039.69 : 1,020,022.61 = 206,688.14 : x
  2. Step 2: Convert to fraction form
    680,039.69/1,020,022.61 = 206,688.14/x
  3. Step 3: Cross multiply
    680,039.69x = 1,020,022.61 × 206,688.14
  4. Step 4: Simplify right side
    680,039.69x = 210,826,569,885.29
  5. Step 5: Solve for x
    x = 210,826,569,885.29/680,039.69
  6. Step 6: Final answer
    x = 310,020.98

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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.