Home / 990,458.27-1,361,570.07-852,128.72

Finding the Fourth Proportional to 990,458.27, 1,361,570.07 and 852,128.72

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Solution

The fourth proportional to 990,458.27, 1,361,570.07 and 852,128.72 is: 1,171,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,458.27 : 1,361,570.07 = 852,128.72 : x
  2. Step 2: Convert to fraction form
    990,458.27/1,361,570.07 = 852,128.72/x
  3. Step 3: Cross multiply
    990,458.27x = 1,361,570.07 × 852,128.72
  4. Step 4: Simplify right side
    990,458.27x = 1,160,232,963,069.73
  5. Step 5: Solve for x
    x = 1,160,232,963,069.73/990,458.27
  6. Step 6: Final answer
    x = 1,171,410.24

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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.