Home / 813,213.55-1,122,241.29-450,643.45

Finding the Fourth Proportional to 813,213.55, 1,122,241.29 and 450,643.45

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Solution

The fourth proportional to 813,213.55, 1,122,241.29 and 450,643.45 is: 621,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,213.55 : 1,122,241.29 = 450,643.45 : x
  2. Step 2: Convert to fraction form
    813,213.55/1,122,241.29 = 450,643.45/x
  3. Step 3: Cross multiply
    813,213.55x = 1,122,241.29 × 450,643.45
  4. Step 4: Simplify right side
    813,213.55x = 505,730,686,658.05
  5. Step 5: Solve for x
    x = 505,730,686,658.05/813,213.55
  6. Step 6: Final answer
    x = 621,891.61

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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.