Home / 712,579.43-983,201.62-422,046.05

Finding the Fourth Proportional to 712,579.43, 983,201.62 and 422,046.05

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Solution

The fourth proportional to 712,579.43, 983,201.62 and 422,046.05 is: 582,329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,579.43 : 983,201.62 = 422,046.05 : x
  2. Step 2: Convert to fraction form
    712,579.43/983,201.62 = 422,046.05/x
  3. Step 3: Cross multiply
    712,579.43x = 983,201.62 × 422,046.05
  4. Step 4: Simplify right side
    712,579.43x = 414,956,353,707.81
  5. Step 5: Solve for x
    x = 414,956,353,707.81/712,579.43
  6. Step 6: Final answer
    x = 582,329.97

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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.