Home / 831,036.45-1,246,554.68-689,318.85

Finding the Fourth Proportional to 831,036.45, 1,246,554.68 and 689,318.85

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Solution

The fourth proportional to 831,036.45, 1,246,554.68 and 689,318.85 is: 1,033,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,036.45 : 1,246,554.68 = 689,318.85 : x
  2. Step 2: Convert to fraction form
    831,036.45/1,246,554.68 = 689,318.85/x
  3. Step 3: Cross multiply
    831,036.45x = 1,246,554.68 × 689,318.85
  4. Step 4: Simplify right side
    831,036.45x = 859,273,635,033.12
  5. Step 5: Solve for x
    x = 859,273,635,033.12/831,036.45
  6. Step 6: Final answer
    x = 1,033,978.28

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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.