Home / 1,426,721.72-1,968,850.59-782,147.21

Finding the Fourth Proportional to 1,426,721.72, 1,968,850.59 and 782,147.21

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Solution

The fourth proportional to 1,426,721.72, 1,968,850.59 and 782,147.21 is: 1,079,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,721.72 : 1,968,850.59 = 782,147.21 : x
  2. Step 2: Convert to fraction form
    1,426,721.72/1,968,850.59 = 782,147.21/x
  3. Step 3: Cross multiply
    1,426,721.72x = 1,968,850.59 × 782,147.21
  4. Step 4: Simplify right side
    1,426,721.72x = 1,539,930,995,875.35
  5. Step 5: Solve for x
    x = 1,539,930,995,875.35/1,426,721.72
  6. Step 6: Final answer
    x = 1,079,349.23

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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.