Home / 628,534.50-867,226.34-370,421.73

Finding the Fourth Proportional to 628,534.50, 867,226.34 and 370,421.73

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Solution

The fourth proportional to 628,534.50, 867,226.34 and 370,421.73 is: 511,092.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,534.50 : 867,226.34 = 370,421.73 : x
  2. Step 2: Convert to fraction form
    628,534.50/867,226.34 = 370,421.73/x
  3. Step 3: Cross multiply
    628,534.50x = 867,226.34 × 370,421.73
  4. Step 4: Simplify right side
    628,534.50x = 321,239,481,164.37
  5. Step 5: Solve for x
    x = 321,239,481,164.37/628,534.50
  6. Step 6: Final answer
    x = 511,092.84

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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.