Home / 920,171.43-1,269,811.81-512,273.29

Finding the Fourth Proportional to 920,171.43, 1,269,811.81 and 512,273.29

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Solution

The fourth proportional to 920,171.43, 1,269,811.81 and 512,273.29 is: 706,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,171.43 : 1,269,811.81 = 512,273.29 : x
  2. Step 2: Convert to fraction form
    920,171.43/1,269,811.81 = 512,273.29/x
  3. Step 3: Cross multiply
    920,171.43x = 1,269,811.81 × 512,273.29
  4. Step 4: Simplify right side
    920,171.43x = 650,490,673,589.56
  5. Step 5: Solve for x
    x = 650,490,673,589.56/920,171.43
  6. Step 6: Final answer
    x = 706,923.35

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1.5x scale

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.