Home / 743,441.23-1,025,956.12-421,144.43

Finding the Fourth Proportional to 743,441.23, 1,025,956.12 and 421,144.43

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Solution

The fourth proportional to 743,441.23, 1,025,956.12 and 421,144.43 is: 581,183.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,441.23 : 1,025,956.12 = 421,144.43 : x
  2. Step 2: Convert to fraction form
    743,441.23/1,025,956.12 = 421,144.43/x
  3. Step 3: Cross multiply
    743,441.23x = 1,025,956.12 × 421,144.43
  4. Step 4: Simplify right side
    743,441.23x = 432,075,705,362.41
  5. Step 5: Solve for x
    x = 432,075,705,362.41/743,441.23
  6. Step 6: Final answer
    x = 581,183.41

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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.