Home / 886,941.18-1,223,978.45-479,042.87

Finding the Fourth Proportional to 886,941.18, 1,223,978.45 and 479,042.87

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Solution

The fourth proportional to 886,941.18, 1,223,978.45 and 479,042.87 is: 661,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,941.18 : 1,223,978.45 = 479,042.87 : x
  2. Step 2: Convert to fraction form
    886,941.18/1,223,978.45 = 479,042.87/x
  3. Step 3: Cross multiply
    886,941.18x = 1,223,978.45 × 479,042.87
  4. Step 4: Simplify right side
    886,941.18x = 586,338,140,991.05
  5. Step 5: Solve for x
    x = 586,338,140,991.05/886,941.18
  6. Step 6: Final answer
    x = 661,078.95

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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.