Home / 1,421,403.53-1,961,532.11-776,823.54

Finding the Fourth Proportional to 1,421,403.53, 1,961,532.11 and 776,823.54

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Solution

The fourth proportional to 1,421,403.53, 1,961,532.11 and 776,823.54 is: 1,072,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,403.53 : 1,961,532.11 = 776,823.54 : x
  2. Step 2: Convert to fraction form
    1,421,403.53/1,961,532.11 = 776,823.54/x
  3. Step 3: Cross multiply
    1,421,403.53x = 1,961,532.11 × 776,823.54
  4. Step 4: Simplify right side
    1,421,403.53x = 1,523,764,313,629.75
  5. Step 5: Solve for x
    x = 1,523,764,313,629.75/1,421,403.53
  6. Step 6: Final answer
    x = 1,072,013.88

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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.