Home / 1,230,858.54-1,698,670.36-687,100.46

Finding the Fourth Proportional to 1,230,858.54, 1,698,670.36 and 687,100.46

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Solution

The fourth proportional to 1,230,858.54, 1,698,670.36 and 687,100.46 is: 948,246.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,858.54 : 1,698,670.36 = 687,100.46 : x
  2. Step 2: Convert to fraction form
    1,230,858.54/1,698,670.36 = 687,100.46/x
  3. Step 3: Cross multiply
    1,230,858.54x = 1,698,670.36 × 687,100.46
  4. Step 4: Simplify right side
    1,230,858.54x = 1,167,157,185,744.37
  5. Step 5: Solve for x
    x = 1,167,157,185,744.37/1,230,858.54
  6. Step 6: Final answer
    x = 948,246.41

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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.