Home / 789,589.10-1,184,118.43-256,984.87

Finding the Fourth Proportional to 789,589.10, 1,184,118.43 and 256,984.87

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Solution

The fourth proportional to 789,589.10, 1,184,118.43 and 256,984.87 is: 385,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,589.10 : 1,184,118.43 = 256,984.87 : x
  2. Step 2: Convert to fraction form
    789,589.10/1,184,118.43 = 256,984.87/x
  3. Step 3: Cross multiply
    789,589.10x = 1,184,118.43 × 256,984.87
  4. Step 4: Simplify right side
    789,589.10x = 304,300,520,798.15
  5. Step 5: Solve for x
    x = 304,300,520,798.15/789,589.10
  6. Step 6: Final answer
    x = 385,390.98

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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.