Home / 989,213.80-1,483,820.70-930,164.80

Finding the Fourth Proportional to 989,213.80, 1,483,820.70 and 930,164.80

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Solution

The fourth proportional to 989,213.80, 1,483,820.70 and 930,164.80 is: 1,395,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,213.80 : 1,483,820.70 = 930,164.80 : x
  2. Step 2: Convert to fraction form
    989,213.80/1,483,820.70 = 930,164.80/x
  3. Step 3: Cross multiply
    989,213.80x = 1,483,820.70 × 930,164.80
  4. Step 4: Simplify right side
    989,213.80x = 1,380,197,784,651.36
  5. Step 5: Solve for x
    x = 1,380,197,784,651.36/989,213.80
  6. Step 6: Final answer
    x = 1,395,247.20

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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.