Home / 920,619.45-1,270,111.05-919,200.20

Finding the Fourth Proportional to 920,619.45, 1,270,111.05 and 919,200.20

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Solution

The fourth proportional to 920,619.45, 1,270,111.05 and 919,200.20 is: 1,268,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,619.45 : 1,270,111.05 = 919,200.20 : x
  2. Step 2: Convert to fraction form
    920,619.45/1,270,111.05 = 919,200.20/x
  3. Step 3: Cross multiply
    920,619.45x = 1,270,111.05 × 919,200.20
  4. Step 4: Simplify right side
    920,619.45x = 1,167,486,324,831.65
  5. Step 5: Solve for x
    x = 1,167,486,324,831.65/920,619.45
  6. Step 6: Final answer
    x = 1,268,153.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.