Home / 1,218,567.15-1,828,025.64-419,634.18

Finding the Fourth Proportional to 1,218,567.15, 1,828,025.64 and 419,634.18

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Solution

The fourth proportional to 1,218,567.15, 1,828,025.64 and 419,634.18 is: 629,511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,567.15 : 1,828,025.64 = 419,634.18 : x
  2. Step 2: Convert to fraction form
    1,218,567.15/1,828,025.64 = 419,634.18/x
  3. Step 3: Cross multiply
    1,218,567.15x = 1,828,025.64 × 419,634.18
  4. Step 4: Simplify right side
    1,218,567.15x = 767,102,040,460.38
  5. Step 5: Solve for x
    x = 767,102,040,460.38/1,218,567.15
  6. Step 6: Final answer
    x = 629,511.50

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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.