Home / 770,561.40-1,155,323.70-349,620.60

Finding the Fourth Proportional to 770,561.40, 1,155,323.70 and 349,620.60

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Solution

The fourth proportional to 770,561.40, 1,155,323.70 and 349,620.60 is: 524,195.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,561.40 : 1,155,323.70 = 349,620.60 : x
  2. Step 2: Convert to fraction form
    770,561.40/1,155,323.70 = 349,620.60/x
  3. Step 3: Cross multiply
    770,561.40x = 1,155,323.70 × 349,620.60
  4. Step 4: Simplify right side
    770,561.40x = 403,924,965,188.22
  5. Step 5: Solve for x
    x = 403,924,965,188.22/770,561.40
  6. Step 6: Final answer
    x = 524,195.69

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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.