Home / 985,790.34-1,359,873.51-856,438.18

Finding the Fourth Proportional to 985,790.34, 1,359,873.51 and 856,438.18

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Solution

The fourth proportional to 985,790.34, 1,359,873.51 and 856,438.18 is: 1,181,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,790.34 : 1,359,873.51 = 856,438.18 : x
  2. Step 2: Convert to fraction form
    985,790.34/1,359,873.51 = 856,438.18/x
  3. Step 3: Cross multiply
    985,790.34x = 1,359,873.51 × 856,438.18
  4. Step 4: Simplify right side
    985,790.34x = 1,164,647,593,934.61
  5. Step 5: Solve for x
    x = 1,164,647,593,934.61/985,790.34
  6. Step 6: Final answer
    x = 1,181,435.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.