Home / 1,106,669.80-1,660,004.70-770,746.60

Finding the Fourth Proportional to 1,106,669.80, 1,660,004.70 and 770,746.60

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Solution

The fourth proportional to 1,106,669.80, 1,660,004.70 and 770,746.60 is: 1,156,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,669.80 : 1,660,004.70 = 770,746.60 : x
  2. Step 2: Convert to fraction form
    1,106,669.80/1,660,004.70 = 770,746.60/x
  3. Step 3: Cross multiply
    1,106,669.80x = 1,660,004.70 × 770,746.60
  4. Step 4: Simplify right side
    1,106,669.80x = 1,279,442,978,509.02
  5. Step 5: Solve for x
    x = 1,279,442,978,509.02/1,106,669.80
  6. Step 6: Final answer
    x = 1,156,119.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.