Home / 1,059,172.67-1,462,362.12-813,720.28

Finding the Fourth Proportional to 1,059,172.67, 1,462,362.12 and 813,720.28

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Solution

The fourth proportional to 1,059,172.67, 1,462,362.12 and 813,720.28 is: 1,123,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,172.67 : 1,462,362.12 = 813,720.28 : x
  2. Step 2: Convert to fraction form
    1,059,172.67/1,462,362.12 = 813,720.28/x
  3. Step 3: Cross multiply
    1,059,172.67x = 1,462,362.12 × 813,720.28
  4. Step 4: Simplify right side
    1,059,172.67x = 1,189,953,709,679.19
  5. Step 5: Solve for x
    x = 1,189,953,709,679.19/1,059,172.67
  6. Step 6: Final answer
    x = 1,123,474.71

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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.