Home / 1,370,805.89-1,891,650.39-758,915.69

Finding the Fourth Proportional to 1,370,805.89, 1,891,650.39 and 758,915.69

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Solution

The fourth proportional to 1,370,805.89, 1,891,650.39 and 758,915.69 is: 1,047,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,805.89 : 1,891,650.39 = 758,915.69 : x
  2. Step 2: Convert to fraction form
    1,370,805.89/1,891,650.39 = 758,915.69/x
  3. Step 3: Cross multiply
    1,370,805.89x = 1,891,650.39 × 758,915.69
  4. Step 4: Simplify right side
    1,370,805.89x = 1,435,603,160,965.62
  5. Step 5: Solve for x
    x = 1,435,603,160,965.62/1,370,805.89
  6. Step 6: Final answer
    x = 1,047,269.47

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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.