Home / 1,188,884.79-1,640,670.26-698,722.74

Finding the Fourth Proportional to 1,188,884.79, 1,640,670.26 and 698,722.74

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Solution

The fourth proportional to 1,188,884.79, 1,640,670.26 and 698,722.74 is: 964,242.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,884.79 : 1,640,670.26 = 698,722.74 : x
  2. Step 2: Convert to fraction form
    1,188,884.79/1,640,670.26 = 698,722.74/x
  3. Step 3: Cross multiply
    1,188,884.79x = 1,640,670.26 × 698,722.74
  4. Step 4: Simplify right side
    1,188,884.79x = 1,146,373,616,010.10
  5. Step 5: Solve for x
    x = 1,146,373,616,010.10/1,188,884.79
  6. Step 6: Final answer
    x = 964,242.81

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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.