Home / 1,011,792.88-1,396,416.60-644,152.60

Finding the Fourth Proportional to 1,011,792.88, 1,396,416.60 and 644,152.60

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Solution

The fourth proportional to 1,011,792.88, 1,396,416.60 and 644,152.60 is: 889,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,792.88 : 1,396,416.60 = 644,152.60 : x
  2. Step 2: Convert to fraction form
    1,011,792.88/1,396,416.60 = 644,152.60/x
  3. Step 3: Cross multiply
    1,011,792.88x = 1,396,416.60 × 644,152.60
  4. Step 4: Simplify right side
    1,011,792.88x = 899,505,373,370.31
  5. Step 5: Solve for x
    x = 899,505,373,370.31/1,011,792.88
  6. Step 6: Final answer
    x = 889,021.26

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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.