Home / 814,912.10-1,222,313.47-215,860.40

Finding the Fourth Proportional to 814,912.10, 1,222,313.47 and 215,860.40

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Solution

The fourth proportional to 814,912.10, 1,222,313.47 and 215,860.40 is: 323,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,912.10 : 1,222,313.47 = 215,860.40 : x
  2. Step 2: Convert to fraction form
    814,912.10/1,222,313.47 = 215,860.40/x
  3. Step 3: Cross multiply
    814,912.10x = 1,222,313.47 × 215,860.40
  4. Step 4: Simplify right side
    814,912.10x = 263,849,074,559.59
  5. Step 5: Solve for x
    x = 263,849,074,559.59/814,912.10
  6. Step 6: Final answer
    x = 323,776.12

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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.