Home / 853,123-1,177,309.74-495,450.04

Finding the Fourth Proportional to 853,123, 1,177,309.74 and 495,450.04

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Solution

The fourth proportional to 853,123, 1,177,309.74 and 495,450.04 is: 683,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,123 : 1,177,309.74 = 495,450.04 : x
  2. Step 2: Convert to fraction form
    853,123/1,177,309.74 = 495,450.04/x
  3. Step 3: Cross multiply
    853,123x = 1,177,309.74 × 495,450.04
  4. Step 4: Simplify right side
    853,123x = 583,298,157,775.39
  5. Step 5: Solve for x
    x = 583,298,157,775.39/853,123
  6. Step 6: Final answer
    x = 683,721.06

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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.