Home / 788,763.60-1,183,145.40-780,469.20

Finding the Fourth Proportional to 788,763.60, 1,183,145.40 and 780,469.20

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Solution

The fourth proportional to 788,763.60, 1,183,145.40 and 780,469.20 is: 1,170,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,763.60 : 1,183,145.40 = 780,469.20 : x
  2. Step 2: Convert to fraction form
    788,763.60/1,183,145.40 = 780,469.20/x
  3. Step 3: Cross multiply
    788,763.60x = 1,183,145.40 × 780,469.20
  4. Step 4: Simplify right side
    788,763.60x = 923,408,543,821.68
  5. Step 5: Solve for x
    x = 923,408,543,821.68/788,763.60
  6. Step 6: Final answer
    x = 1,170,703.80

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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.