Home / 1,100,585.80-1,651,042.73-390,554.38

Finding the Fourth Proportional to 1,100,585.80, 1,651,042.73 and 390,554.38

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Solution

The fourth proportional to 1,100,585.80, 1,651,042.73 and 390,554.38 is: 585,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,585.80 : 1,651,042.73 = 390,554.38 : x
  2. Step 2: Convert to fraction form
    1,100,585.80/1,651,042.73 = 390,554.38/x
  3. Step 3: Cross multiply
    1,100,585.80x = 1,651,042.73 × 390,554.38
  4. Step 4: Simplify right side
    1,100,585.80x = 644,821,969,768.66
  5. Step 5: Solve for x
    x = 644,821,969,768.66/1,100,585.80
  6. Step 6: Final answer
    x = 585,889.78

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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.