Home / 770,227.21-1,155,445.90-320,842.98

Finding the Fourth Proportional to 770,227.21, 1,155,445.90 and 320,842.98

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Solution

The fourth proportional to 770,227.21, 1,155,445.90 and 320,842.98 is: 481,308.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,227.21 : 1,155,445.90 = 320,842.98 : x
  2. Step 2: Convert to fraction form
    770,227.21/1,155,445.90 = 320,842.98/x
  3. Step 3: Cross multiply
    770,227.21x = 1,155,445.90 × 320,842.98
  4. Step 4: Simplify right side
    770,227.21x = 370,716,705,784.78
  5. Step 5: Solve for x
    x = 370,716,705,784.78/770,227.21
  6. Step 6: Final answer
    x = 481,308.24

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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.