Home / 1,421,239.26-1,961,226.90-776,664.48

Finding the Fourth Proportional to 1,421,239.26, 1,961,226.90 and 776,664.48

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Solution

The fourth proportional to 1,421,239.26, 1,961,226.90 and 776,664.48 is: 1,071,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,239.26 : 1,961,226.90 = 776,664.48 : x
  2. Step 2: Convert to fraction form
    1,421,239.26/1,961,226.90 = 776,664.48/x
  3. Step 3: Cross multiply
    1,421,239.26x = 1,961,226.90 × 776,664.48
  4. Step 4: Simplify right side
    1,421,239.26x = 1,523,215,270,450.51
  5. Step 5: Solve for x
    x = 1,523,215,270,450.51/1,421,239.26
  6. Step 6: Final answer
    x = 1,071,751.47

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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.