Home / 779,075.86-1,170,668.72-419,512.56

Finding the Fourth Proportional to 779,075.86, 1,170,668.72 and 419,512.56

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Solution

The fourth proportional to 779,075.86, 1,170,668.72 and 419,512.56 is: 630,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,075.86 : 1,170,668.72 = 419,512.56 : x
  2. Step 2: Convert to fraction form
    779,075.86/1,170,668.72 = 419,512.56/x
  3. Step 3: Cross multiply
    779,075.86x = 1,170,668.72 × 419,512.56
  4. Step 4: Simplify right side
    779,075.86x = 491,110,233,912.28
  5. Step 5: Solve for x
    x = 491,110,233,912.28/779,075.86
  6. Step 6: Final answer
    x = 630,375.37

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1.5x scale

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.