Home / 770,512.60-1,155,768.90-518,570.20

Finding the Fourth Proportional to 770,512.60, 1,155,768.90 and 518,570.20

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Solution

The fourth proportional to 770,512.60, 1,155,768.90 and 518,570.20 is: 777,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,512.60 : 1,155,768.90 = 518,570.20 : x
  2. Step 2: Convert to fraction form
    770,512.60/1,155,768.90 = 518,570.20/x
  3. Step 3: Cross multiply
    770,512.60x = 1,155,768.90 × 518,570.20
  4. Step 4: Simplify right side
    770,512.60x = 599,347,309,626.78
  5. Step 5: Solve for x
    x = 599,347,309,626.78/770,512.60
  6. Step 6: Final answer
    x = 777,855.30

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Double scale
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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.