Home / 813,158.80-1,122,142.38-450,579.48

Finding the Fourth Proportional to 813,158.80, 1,122,142.38 and 450,579.48

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Solution

The fourth proportional to 813,158.80, 1,122,142.38 and 450,579.48 is: 621,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,158.80 : 1,122,142.38 = 450,579.48 : x
  2. Step 2: Convert to fraction form
    813,158.80/1,122,142.38 = 450,579.48/x
  3. Step 3: Cross multiply
    813,158.80x = 1,122,142.38 × 450,579.48
  4. Step 4: Simplify right side
    813,158.80x = 505,614,330,066.36
  5. Step 5: Solve for x
    x = 505,614,330,066.36/813,158.80
  6. Step 6: Final answer
    x = 621,790.39

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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.