Home / 437,075.80-655,872.90-287,744.20

Finding the Fourth Proportional to 437,075.80, 655,872.90 and 287,744.20

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Solution

The fourth proportional to 437,075.80, 655,872.90 and 287,744.20 is: 431,786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,075.80 : 655,872.90 = 287,744.20 : x
  2. Step 2: Convert to fraction form
    437,075.80/655,872.90 = 287,744.20/x
  3. Step 3: Cross multiply
    437,075.80x = 655,872.90 × 287,744.20
  4. Step 4: Simplify right side
    437,075.80x = 188,723,622,912.18
  5. Step 5: Solve for x
    x = 188,723,622,912.18/437,075.80
  6. Step 6: Final answer
    x = 431,786.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.