Home / 813,035.87-1,121,998.52-450,465.44

Finding the Fourth Proportional to 813,035.87, 1,121,998.52 and 450,465.44

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Solution

The fourth proportional to 813,035.87, 1,121,998.52 and 450,465.44 is: 621,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,035.87 : 1,121,998.52 = 450,465.44 : x
  2. Step 2: Convert to fraction form
    813,035.87/1,121,998.52 = 450,465.44/x
  3. Step 3: Cross multiply
    813,035.87x = 1,121,998.52 × 450,465.44
  4. Step 4: Simplify right side
    813,035.87x = 505,421,556,991.15
  5. Step 5: Solve for x
    x = 505,421,556,991.15/813,035.87
  6. Step 6: Final answer
    x = 621,647.30

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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.