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Finding the Fourth Proportional to 565,637.22, 780,559.38 and 310,986.42

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Solution

The fourth proportional to 565,637.22, 780,559.38 and 310,986.42 is: 429,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,637.22 : 780,559.38 = 310,986.42 : x
  2. Step 2: Convert to fraction form
    565,637.22/780,559.38 = 310,986.42/x
  3. Step 3: Cross multiply
    565,637.22x = 780,559.38 × 310,986.42
  4. Step 4: Simplify right side
    565,637.22x = 242,743,367,183.62
  5. Step 5: Solve for x
    x = 242,743,367,183.62/565,637.22
  6. Step 6: Final answer
    x = 429,150.27

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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.