Home / 838,450.85-1,157,003.80-475,882.09

Finding the Fourth Proportional to 838,450.85, 1,157,003.80 and 475,882.09

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Solution

The fourth proportional to 838,450.85, 1,157,003.80 and 475,882.09 is: 656,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,450.85 : 1,157,003.80 = 475,882.09 : x
  2. Step 2: Convert to fraction form
    838,450.85/1,157,003.80 = 475,882.09/x
  3. Step 3: Cross multiply
    838,450.85x = 1,157,003.80 × 475,882.09
  4. Step 4: Simplify right side
    838,450.85x = 550,597,382,399.73
  5. Step 5: Solve for x
    x = 550,597,382,399.73/838,450.85
  6. Step 6: Final answer
    x = 656,684.15

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1.5x scale

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.