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Finding the Fourth Proportional to 515,955.60, 772,183.80 and 515,955.60

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Solution

The fourth proportional to 515,955.60, 772,183.80 and 515,955.60 is: 772,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,955.60 : 772,183.80 = 515,955.60 : x
  2. Step 2: Convert to fraction form
    515,955.60/772,183.80 = 515,955.60/x
  3. Step 3: Cross multiply
    515,955.60x = 772,183.80 × 515,955.60
  4. Step 4: Simplify right side
    515,955.60x = 398,412,555,839.28
  5. Step 5: Solve for x
    x = 398,412,555,839.28/515,955.60
  6. Step 6: Final answer
    x = 772,183.80

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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.