Home / 1,007,947.78-1,511,950.80-259,993.78

Finding the Fourth Proportional to 1,007,947.78, 1,511,950.80 and 259,993.78

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Solution

The fourth proportional to 1,007,947.78, 1,511,950.80 and 259,993.78 is: 389,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,947.78 : 1,511,950.80 = 259,993.78 : x
  2. Step 2: Convert to fraction form
    1,007,947.78/1,511,950.80 = 259,993.78/x
  3. Step 3: Cross multiply
    1,007,947.78x = 1,511,950.80 × 259,993.78
  4. Step 4: Simplify right side
    1,007,947.78x = 393,097,803,666.02
  5. Step 5: Solve for x
    x = 393,097,803,666.02/1,007,947.78
  6. Step 6: Final answer
    x = 389,998.18

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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.