Home / 930,109.80-1,395,164.70-720,157.80

Finding the Fourth Proportional to 930,109.80, 1,395,164.70 and 720,157.80

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Solution

The fourth proportional to 930,109.80, 1,395,164.70 and 720,157.80 is: 1,080,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,109.80 : 1,395,164.70 = 720,157.80 : x
  2. Step 2: Convert to fraction form
    930,109.80/1,395,164.70 = 720,157.80/x
  3. Step 3: Cross multiply
    930,109.80x = 1,395,164.70 × 720,157.80
  4. Step 4: Simplify right side
    930,109.80x = 1,004,738,740,989.66
  5. Step 5: Solve for x
    x = 1,004,738,740,989.66/930,109.80
  6. Step 6: Final answer
    x = 1,080,236.70

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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.