Home / 809,006.40-1,213,509.60-804,340.80

Finding the Fourth Proportional to 809,006.40, 1,213,509.60 and 804,340.80

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Solution

The fourth proportional to 809,006.40, 1,213,509.60 and 804,340.80 is: 1,206,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,006.40 : 1,213,509.60 = 804,340.80 : x
  2. Step 2: Convert to fraction form
    809,006.40/1,213,509.60 = 804,340.80/x
  3. Step 3: Cross multiply
    809,006.40x = 1,213,509.60 × 804,340.80
  4. Step 4: Simplify right side
    809,006.40x = 976,075,282,471.68
  5. Step 5: Solve for x
    x = 976,075,282,471.68/809,006.40
  6. Step 6: Final answer
    x = 1,206,511.20

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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.