Home / 770,290.56-1,155,202.56-209,252.16

Finding the Fourth Proportional to 770,290.56, 1,155,202.56 and 209,252.16

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Solution

The fourth proportional to 770,290.56, 1,155,202.56 and 209,252.16 is: 313,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,290.56 : 1,155,202.56 = 209,252.16 : x
  2. Step 2: Convert to fraction form
    770,290.56/1,155,202.56 = 209,252.16/x
  3. Step 3: Cross multiply
    770,290.56x = 1,155,202.56 × 209,252.16
  4. Step 4: Simplify right side
    770,290.56x = 241,728,630,917.53
  5. Step 5: Solve for x
    x = 241,728,630,917.53/770,290.56
  6. Step 6: Final answer
    x = 313,814.87

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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.