Home / 990,458.52-1,361,570.42-852,128.97

Finding the Fourth Proportional to 990,458.52, 1,361,570.42 and 852,128.97

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Solution

The fourth proportional to 990,458.52, 1,361,570.42 and 852,128.97 is: 1,171,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,458.52 : 1,361,570.42 = 852,128.97 : x
  2. Step 2: Convert to fraction form
    990,458.52/1,361,570.42 = 852,128.97/x
  3. Step 3: Cross multiply
    990,458.52x = 1,361,570.42 × 852,128.97
  4. Step 4: Simplify right side
    990,458.52x = 1,160,233,595,316.42
  5. Step 5: Solve for x
    x = 1,160,233,595,316.42/990,458.52
  6. Step 6: Final answer
    x = 1,171,410.59

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.