Home / 789,462.45-1,089,395.33-445,187.95

Finding the Fourth Proportional to 789,462.45, 1,089,395.33 and 445,187.95

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Solution

The fourth proportional to 789,462.45, 1,089,395.33 and 445,187.95 is: 614,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,462.45 : 1,089,395.33 = 445,187.95 : x
  2. Step 2: Convert to fraction form
    789,462.45/1,089,395.33 = 445,187.95/x
  3. Step 3: Cross multiply
    789,462.45x = 1,089,395.33 × 445,187.95
  4. Step 4: Simplify right side
    789,462.45x = 484,985,668,752.85
  5. Step 5: Solve for x
    x = 484,985,668,752.85/789,462.45
  6. Step 6: Final answer
    x = 614,323.92

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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.