Home / 780,135.40-1,170,203.10-673,847.20

Finding the Fourth Proportional to 780,135.40, 1,170,203.10 and 673,847.20

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Solution

The fourth proportional to 780,135.40, 1,170,203.10 and 673,847.20 is: 1,010,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,135.40 : 1,170,203.10 = 673,847.20 : x
  2. Step 2: Convert to fraction form
    780,135.40/1,170,203.10 = 673,847.20/x
  3. Step 3: Cross multiply
    780,135.40x = 1,170,203.10 × 673,847.20
  4. Step 4: Simplify right side
    780,135.40x = 788,538,082,366.32
  5. Step 5: Solve for x
    x = 788,538,082,366.32/780,135.40
  6. Step 6: Final answer
    x = 1,010,770.80

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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.