Home / 985,297.20-1,477,362.60-512,905.20

Finding the Fourth Proportional to 985,297.20, 1,477,362.60 and 512,905.20

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Solution

The fourth proportional to 985,297.20, 1,477,362.60 and 512,905.20 is: 769,054.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,297.20 : 1,477,362.60 = 512,905.20 : x
  2. Step 2: Convert to fraction form
    985,297.20/1,477,362.60 = 512,905.20/x
  3. Step 3: Cross multiply
    985,297.20x = 1,477,362.60 × 512,905.20
  4. Step 4: Simplify right side
    985,297.20x = 757,746,959,825.52
  5. Step 5: Solve for x
    x = 757,746,959,825.52/985,297.20
  6. Step 6: Final answer
    x = 769,054.21

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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.