Home / 1,379,783.25-1,904,130.05-776,171.25

Finding the Fourth Proportional to 1,379,783.25, 1,904,130.05 and 776,171.25

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Solution

The fourth proportional to 1,379,783.25, 1,904,130.05 and 776,171.25 is: 1,071,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,783.25 : 1,904,130.05 = 776,171.25 : x
  2. Step 2: Convert to fraction form
    1,379,783.25/1,904,130.05 = 776,171.25/x
  3. Step 3: Cross multiply
    1,379,783.25x = 1,904,130.05 × 776,171.25
  4. Step 4: Simplify right side
    1,379,783.25x = 1,477,930,997,190.21
  5. Step 5: Solve for x
    x = 1,477,930,997,190.21/1,379,783.25
  6. Step 6: Final answer
    x = 1,071,132.73

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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.