Home / 1,188,481.70-1,640,740.20-929,808.81

Finding the Fourth Proportional to 1,188,481.70, 1,640,740.20 and 929,808.81

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Solution

The fourth proportional to 1,188,481.70, 1,640,740.20 and 929,808.81 is: 1,283,633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,481.70 : 1,640,740.20 = 929,808.81 : x
  2. Step 2: Convert to fraction form
    1,188,481.70/1,640,740.20 = 929,808.81/x
  3. Step 3: Cross multiply
    1,188,481.70x = 1,640,740.20 × 929,808.81
  4. Step 4: Simplify right side
    1,188,481.70x = 1,525,574,692,881.16
  5. Step 5: Solve for x
    x = 1,525,574,692,881.16/1,188,481.70
  6. Step 6: Final answer
    x = 1,283,633.31

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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.