Home / 1,231,819-1,699,915.34-666,571

Finding the Fourth Proportional to 1,231,819, 1,699,915.34 and 666,571

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Solution

The fourth proportional to 1,231,819, 1,699,915.34 and 666,571 is: 919,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,819 : 1,699,915.34 = 666,571 : x
  2. Step 2: Convert to fraction form
    1,231,819/1,699,915.34 = 666,571/x
  3. Step 3: Cross multiply
    1,231,819x = 1,699,915.34 × 666,571
  4. Step 4: Simplify right side
    1,231,819x = 1,133,114,268,099.14
  5. Step 5: Solve for x
    x = 1,133,114,268,099.14/1,231,819
  6. Step 6: Final answer
    x = 919,870.75

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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.