Home / 721,069.29-1,081,521.32-188,641.71

Finding the Fourth Proportional to 721,069.29, 1,081,521.32 and 188,641.71

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Solution

The fourth proportional to 721,069.29, 1,081,521.32 and 188,641.71 is: 282,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,069.29 : 1,081,521.32 = 188,641.71 : x
  2. Step 2: Convert to fraction form
    721,069.29/1,081,521.32 = 188,641.71/x
  3. Step 3: Cross multiply
    721,069.29x = 1,081,521.32 × 188,641.71
  4. Step 4: Simplify right side
    721,069.29x = 204,020,030,263.05
  5. Step 5: Solve for x
    x = 204,020,030,263.05/721,069.29
  6. Step 6: Final answer
    x = 282,940.95

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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.