Home / 806,414.40-1,208,455.20-356,767.20

Finding the Fourth Proportional to 806,414.40, 1,208,455.20 and 356,767.20

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Solution

The fourth proportional to 806,414.40, 1,208,455.20 and 356,767.20 is: 534,634.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,414.40 : 1,208,455.20 = 356,767.20 : x
  2. Step 2: Convert to fraction form
    806,414.40/1,208,455.20 = 356,767.20/x
  3. Step 3: Cross multiply
    806,414.40x = 1,208,455.20 × 356,767.20
  4. Step 4: Simplify right side
    806,414.40x = 431,137,178,029.44
  5. Step 5: Solve for x
    x = 431,137,178,029.44/806,414.40
  6. Step 6: Final answer
    x = 534,634.77

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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.