Home / 680,626.48-1,021,570.97-343,903.60

Finding the Fourth Proportional to 680,626.48, 1,021,570.97 and 343,903.60

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Solution

The fourth proportional to 680,626.48, 1,021,570.97 and 343,903.60 is: 516,174.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,626.48 : 1,021,570.97 = 343,903.60 : x
  2. Step 2: Convert to fraction form
    680,626.48/1,021,570.97 = 343,903.60/x
  3. Step 3: Cross multiply
    680,626.48x = 1,021,570.97 × 343,903.60
  4. Step 4: Simplify right side
    680,626.48x = 351,321,934,238.49
  5. Step 5: Solve for x
    x = 351,321,934,238.49/680,626.48
  6. Step 6: Final answer
    x = 516,174.35

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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.