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Finding the Fourth Proportional to 777,797.20, 1,166,004.60 and 511,685.20

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Solution

The fourth proportional to 777,797.20, 1,166,004.60 and 511,685.20 is: 767,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,797.20 : 1,166,004.60 = 511,685.20 : x
  2. Step 2: Convert to fraction form
    777,797.20/1,166,004.60 = 511,685.20/x
  3. Step 3: Cross multiply
    777,797.20x = 1,166,004.60 × 511,685.20
  4. Step 4: Simplify right side
    777,797.20x = 596,627,296,951.92
  5. Step 5: Solve for x
    x = 596,627,296,951.92/777,797.20
  6. Step 6: Final answer
    x = 767,073.08

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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.