Home / 784,414.50-1,082,446.52-440,218.28

Finding the Fourth Proportional to 784,414.50, 1,082,446.52 and 440,218.28

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Solution

The fourth proportional to 784,414.50, 1,082,446.52 and 440,218.28 is: 607,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,414.50 : 1,082,446.52 = 440,218.28 : x
  2. Step 2: Convert to fraction form
    784,414.50/1,082,446.52 = 440,218.28/x
  3. Step 3: Cross multiply
    784,414.50x = 1,082,446.52 × 440,218.28
  4. Step 4: Simplify right side
    784,414.50x = 476,512,745,226.39
  5. Step 5: Solve for x
    x = 476,512,745,226.39/784,414.50
  6. Step 6: Final answer
    x = 607,475.70

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1.5x scale

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.