Home / 1,380,062.44-1,904,466.66-776,449

Finding the Fourth Proportional to 1,380,062.44, 1,904,466.66 and 776,449

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Solution

The fourth proportional to 1,380,062.44, 1,904,466.66 and 776,449 is: 1,071,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,062.44 : 1,904,466.66 = 776,449 : x
  2. Step 2: Convert to fraction form
    1,380,062.44/1,904,466.66 = 776,449/x
  3. Step 3: Cross multiply
    1,380,062.44x = 1,904,466.66 × 776,449
  4. Step 4: Simplify right side
    1,380,062.44x = 1,478,721,233,690.34
  5. Step 5: Solve for x
    x = 1,478,721,233,690.34/1,380,062.44
  6. Step 6: Final answer
    x = 1,071,488.64

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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.