Home / 810,243.42-1,118,158.47-447,690.64

Finding the Fourth Proportional to 810,243.42, 1,118,158.47 and 447,690.64

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Solution

The fourth proportional to 810,243.42, 1,118,158.47 and 447,690.64 is: 617,825.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,243.42 : 1,118,158.47 = 447,690.64 : x
  2. Step 2: Convert to fraction form
    810,243.42/1,118,158.47 = 447,690.64/x
  3. Step 3: Cross multiply
    810,243.42x = 1,118,158.47 × 447,690.64
  4. Step 4: Simplify right side
    810,243.42x = 500,589,073,226.48
  5. Step 5: Solve for x
    x = 500,589,073,226.48/810,243.42
  6. Step 6: Final answer
    x = 617,825.53

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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.