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Finding the Fourth Proportional to 814,482.80, 1,222,015.80 and 341,313.20

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Solution

The fourth proportional to 814,482.80, 1,222,015.80 and 341,313.20 is: 512,092.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,482.80 : 1,222,015.80 = 341,313.20 : x
  2. Step 2: Convert to fraction form
    814,482.80/1,222,015.80 = 341,313.20/x
  3. Step 3: Cross multiply
    814,482.80x = 1,222,015.80 × 341,313.20
  4. Step 4: Simplify right side
    814,482.80x = 417,090,123,148.56
  5. Step 5: Solve for x
    x = 417,090,123,148.56/814,482.80
  6. Step 6: Final answer
    x = 512,092.00

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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.