Home / 772,414.20-1,158,621.30-456,708.60

Finding the Fourth Proportional to 772,414.20, 1,158,621.30 and 456,708.60

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Solution

The fourth proportional to 772,414.20, 1,158,621.30 and 456,708.60 is: 685,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,414.20 : 1,158,621.30 = 456,708.60 : x
  2. Step 2: Convert to fraction form
    772,414.20/1,158,621.30 = 456,708.60/x
  3. Step 3: Cross multiply
    772,414.20x = 1,158,621.30 × 456,708.60
  4. Step 4: Simplify right side
    772,414.20x = 529,152,311,853.18
  5. Step 5: Solve for x
    x = 529,152,311,853.18/772,414.20
  6. Step 6: Final answer
    x = 685,062.90

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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.