Home / 1,025,072.64-1,414,225.44-642,960

Finding the Fourth Proportional to 1,025,072.64, 1,414,225.44 and 642,960

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Solution

The fourth proportional to 1,025,072.64, 1,414,225.44 and 642,960 is: 887,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,072.64 : 1,414,225.44 = 642,960 : x
  2. Step 2: Convert to fraction form
    1,025,072.64/1,414,225.44 = 642,960/x
  3. Step 3: Cross multiply
    1,025,072.64x = 1,414,225.44 × 642,960
  4. Step 4: Simplify right side
    1,025,072.64x = 909,290,388,902.40
  5. Step 5: Solve for x
    x = 909,290,388,902.40/1,025,072.64
  6. Step 6: Final answer
    x = 887,049.71

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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.