Home / 853,120-1,177,305.60-495,447.04

Finding the Fourth Proportional to 853,120, 1,177,305.60 and 495,447.04

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Solution

The fourth proportional to 853,120, 1,177,305.60 and 495,447.04 is: 683,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,120 : 1,177,305.60 = 495,447.04 : x
  2. Step 2: Convert to fraction form
    853,120/1,177,305.60 = 495,447.04/x
  3. Step 3: Cross multiply
    853,120x = 1,177,305.60 × 495,447.04
  4. Step 4: Simplify right side
    853,120x = 583,292,574,695.42
  5. Step 5: Solve for x
    x = 583,292,574,695.42/853,120
  6. Step 6: Final answer
    x = 683,716.92

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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.