Home / 770,321.56-1,155,249.06-209,283.16

Finding the Fourth Proportional to 770,321.56, 1,155,249.06 and 209,283.16

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Solution

The fourth proportional to 770,321.56, 1,155,249.06 and 209,283.16 is: 313,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,321.56 : 1,155,249.06 = 209,283.16 : x
  2. Step 2: Convert to fraction form
    770,321.56/1,155,249.06 = 209,283.16/x
  3. Step 3: Cross multiply
    770,321.56x = 1,155,249.06 × 209,283.16
  4. Step 4: Simplify right side
    770,321.56x = 241,774,173,863.83
  5. Step 5: Solve for x
    x = 241,774,173,863.83/770,321.56
  6. Step 6: Final answer
    x = 313,861.36

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Double scale
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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.