Home / 1,311,210.89-1,809,526.82-730,433.31

Finding the Fourth Proportional to 1,311,210.89, 1,809,526.82 and 730,433.31

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Solution

The fourth proportional to 1,311,210.89, 1,809,526.82 and 730,433.31 is: 1,008,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,210.89 : 1,809,526.82 = 730,433.31 : x
  2. Step 2: Convert to fraction form
    1,311,210.89/1,809,526.82 = 730,433.31/x
  3. Step 3: Cross multiply
    1,311,210.89x = 1,809,526.82 × 730,433.31
  4. Step 4: Simplify right side
    1,311,210.89x = 1,321,738,664,666.37
  5. Step 5: Solve for x
    x = 1,321,738,664,666.37/1,311,210.89
  6. Step 6: Final answer
    x = 1,008,029.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.