Home / 667,055.07-920,529.38-361,123.36

Finding the Fourth Proportional to 667,055.07, 920,529.38 and 361,123.36

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Solution

The fourth proportional to 667,055.07, 920,529.38 and 361,123.36 is: 498,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,055.07 : 920,529.38 = 361,123.36 : x
  2. Step 2: Convert to fraction form
    667,055.07/920,529.38 = 361,123.36/x
  3. Step 3: Cross multiply
    667,055.07x = 920,529.38 × 361,123.36
  4. Step 4: Simplify right side
    667,055.07x = 332,424,661,285.80
  5. Step 5: Solve for x
    x = 332,424,661,285.80/667,055.07
  6. Step 6: Final answer
    x = 498,346.65

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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.