Home / 669,821.20-1,004,764.64-270,412.16

Finding the Fourth Proportional to 669,821.20, 1,004,764.64 and 270,412.16

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Solution

The fourth proportional to 669,821.20, 1,004,764.64 and 270,412.16 is: 405,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,821.20 : 1,004,764.64 = 270,412.16 : x
  2. Step 2: Convert to fraction form
    669,821.20/1,004,764.64 = 270,412.16/x
  3. Step 3: Cross multiply
    669,821.20x = 1,004,764.64 × 270,412.16
  4. Step 4: Simplify right side
    669,821.20x = 271,700,570,218.14
  5. Step 5: Solve for x
    x = 271,700,570,218.14/669,821.20
  6. Step 6: Final answer
    x = 405,631.49

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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.