Home / 670,742.48-1,005,900.24-221,379.68

Finding the Fourth Proportional to 670,742.48, 1,005,900.24 and 221,379.68

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Solution

The fourth proportional to 670,742.48, 1,005,900.24 and 221,379.68 is: 331,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,742.48 : 1,005,900.24 = 221,379.68 : x
  2. Step 2: Convert to fraction form
    670,742.48/1,005,900.24 = 221,379.68/x
  3. Step 3: Cross multiply
    670,742.48x = 1,005,900.24 × 221,379.68
  4. Step 4: Simplify right side
    670,742.48x = 222,685,873,243.12
  5. Step 5: Solve for x
    x = 222,685,873,243.12/670,742.48
  6. Step 6: Final answer
    x = 331,999.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.