Home / 820,140.37-1,230,210.55-733,781.20

Finding the Fourth Proportional to 820,140.37, 1,230,210.55 and 733,781.20

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Solution

The fourth proportional to 820,140.37, 1,230,210.55 and 733,781.20 is: 1,100,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,140.37 : 1,230,210.55 = 733,781.20 : x
  2. Step 2: Convert to fraction form
    820,140.37/1,230,210.55 = 733,781.20/x
  3. Step 3: Cross multiply
    820,140.37x = 1,230,210.55 × 733,781.20
  4. Step 4: Simplify right side
    820,140.37x = 902,705,373,631.66
  5. Step 5: Solve for x
    x = 902,705,373,631.66/820,140.37
  6. Step 6: Final answer
    x = 1,100,671.80

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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.