Home / 720,969.93-1,081,516.25-188,490.11

Finding the Fourth Proportional to 720,969.93, 1,081,516.25 and 188,490.11

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Solution

The fourth proportional to 720,969.93, 1,081,516.25 and 188,490.11 is: 282,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,969.93 : 1,081,516.25 = 188,490.11 : x
  2. Step 2: Convert to fraction form
    720,969.93/1,081,516.25 = 188,490.11/x
  3. Step 3: Cross multiply
    720,969.93x = 1,081,516.25 × 188,490.11
  4. Step 4: Simplify right side
    720,969.93x = 203,855,111,992.93
  5. Step 5: Solve for x
    x = 203,855,111,992.93/720,969.93
  6. Step 6: Final answer
    x = 282,751.20

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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.