Home / 1,260,287.80-1,888,703.70-809,625.40

Finding the Fourth Proportional to 1,260,287.80, 1,888,703.70 and 809,625.40

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Solution

The fourth proportional to 1,260,287.80, 1,888,703.70 and 809,625.40 is: 1,213,328.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,287.80 : 1,888,703.70 = 809,625.40 : x
  2. Step 2: Convert to fraction form
    1,260,287.80/1,888,703.70 = 809,625.40/x
  3. Step 3: Cross multiply
    1,260,287.80x = 1,888,703.70 × 809,625.40
  4. Step 4: Simplify right side
    1,260,287.80x = 1,529,142,488,593.98
  5. Step 5: Solve for x
    x = 1,529,142,488,593.98/1,260,287.80
  6. Step 6: Final answer
    x = 1,213,328.01

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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.