Home / 1,309,901.68-1,807,664.05-729,112.29

Finding the Fourth Proportional to 1,309,901.68, 1,807,664.05 and 729,112.29

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Solution

The fourth proportional to 1,309,901.68, 1,807,664.05 and 729,112.29 is: 1,006,174.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,901.68 : 1,807,664.05 = 729,112.29 : x
  2. Step 2: Convert to fraction form
    1,309,901.68/1,807,664.05 = 729,112.29/x
  3. Step 3: Cross multiply
    1,309,901.68x = 1,807,664.05 × 729,112.29
  4. Step 4: Simplify right side
    1,309,901.68x = 1,317,990,075,046.17
  5. Step 5: Solve for x
    x = 1,317,990,075,046.17/1,309,901.68
  6. Step 6: Final answer
    x = 1,006,174.81

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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.