Home / 772,771.20-1,157,601.60-520,828.80

Finding the Fourth Proportional to 772,771.20, 1,157,601.60 and 520,828.80

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Solution

The fourth proportional to 772,771.20, 1,157,601.60 and 520,828.80 is: 780,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,771.20 : 1,157,601.60 = 520,828.80 : x
  2. Step 2: Convert to fraction form
    772,771.20/1,157,601.60 = 520,828.80/x
  3. Step 3: Cross multiply
    772,771.20x = 1,157,601.60 × 520,828.80
  4. Step 4: Simplify right side
    772,771.20x = 602,912,252,206.08
  5. Step 5: Solve for x
    x = 602,912,252,206.08/772,771.20
  6. Step 6: Final answer
    x = 780,195.03

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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.