Home / 810,647.01-1,216,216.53-431,503.23

Finding the Fourth Proportional to 810,647.01, 1,216,216.53 and 431,503.23

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Solution

The fourth proportional to 810,647.01, 1,216,216.53 and 431,503.23 is: 647,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,647.01 : 1,216,216.53 = 431,503.23 : x
  2. Step 2: Convert to fraction form
    810,647.01/1,216,216.53 = 431,503.23/x
  3. Step 3: Cross multiply
    810,647.01x = 1,216,216.53 × 431,503.23
  4. Step 4: Simplify right side
    810,647.01x = 524,801,361,074.39
  5. Step 5: Solve for x
    x = 524,801,361,074.39/810,647.01
  6. Step 6: Final answer
    x = 647,385.80

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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.