Home / 770,317.56-1,155,243.06-209,279.16

Finding the Fourth Proportional to 770,317.56, 1,155,243.06 and 209,279.16

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Solution

The fourth proportional to 770,317.56, 1,155,243.06 and 209,279.16 is: 313,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,317.56 : 1,155,243.06 = 209,279.16 : x
  2. Step 2: Convert to fraction form
    770,317.56/1,155,243.06 = 209,279.16/x
  3. Step 3: Cross multiply
    770,317.56x = 1,155,243.06 × 209,279.16
  4. Step 4: Simplify right side
    770,317.56x = 241,768,297,192.63
  5. Step 5: Solve for x
    x = 241,768,297,192.63/770,317.56
  6. Step 6: Final answer
    x = 313,855.36

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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.