Home / 1,329,449.21-1,994,676.40-520,411.83

Finding the Fourth Proportional to 1,329,449.21, 1,994,676.40 and 520,411.83

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Solution

The fourth proportional to 1,329,449.21, 1,994,676.40 and 520,411.83 is: 780,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,449.21 : 1,994,676.40 = 520,411.83 : x
  2. Step 2: Convert to fraction form
    1,329,449.21/1,994,676.40 = 520,411.83/x
  3. Step 3: Cross multiply
    1,329,449.21x = 1,994,676.40 × 520,411.83
  4. Step 4: Simplify right side
    1,329,449.21x = 1,038,053,192,979.75
  5. Step 5: Solve for x
    x = 1,038,053,192,979.75/1,329,449.21
  6. Step 6: Final answer
    x = 780,814.48

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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.