Home / 743,170.87-1,025,541.43-420,883.28

Finding the Fourth Proportional to 743,170.87, 1,025,541.43 and 420,883.28

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Solution

The fourth proportional to 743,170.87, 1,025,541.43 and 420,883.28 is: 580,799.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,170.87 : 1,025,541.43 = 420,883.28 : x
  2. Step 2: Convert to fraction form
    743,170.87/1,025,541.43 = 420,883.28/x
  3. Step 3: Cross multiply
    743,170.87x = 1,025,541.43 × 420,883.28
  4. Step 4: Simplify right side
    743,170.87x = 431,633,240,834.29
  5. Step 5: Solve for x
    x = 431,633,240,834.29/743,170.87
  6. Step 6: Final answer
    x = 580,799.46

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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.