Home / 987,987.41-1,362,670.36-850,400.51

Finding the Fourth Proportional to 987,987.41, 1,362,670.36 and 850,400.51

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Solution

The fourth proportional to 987,987.41, 1,362,670.36 and 850,400.51 is: 1,172,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,987.41 : 1,362,670.36 = 850,400.51 : x
  2. Step 2: Convert to fraction form
    987,987.41/1,362,670.36 = 850,400.51/x
  3. Step 3: Cross multiply
    987,987.41x = 1,362,670.36 × 850,400.51
  4. Step 4: Simplify right side
    987,987.41x = 1,158,815,563,573.21
  5. Step 5: Solve for x
    x = 1,158,815,563,573.21/987,987.41
  6. Step 6: Final answer
    x = 1,172,905.19

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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.