Home / 789,145.20-1,183,134.60-434,559.60

Finding the Fourth Proportional to 789,145.20, 1,183,134.60 and 434,559.60

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Solution

The fourth proportional to 789,145.20, 1,183,134.60 and 434,559.60 is: 651,518.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,145.20 : 1,183,134.60 = 434,559.60 : x
  2. Step 2: Convert to fraction form
    789,145.20/1,183,134.60 = 434,559.60/x
  3. Step 3: Cross multiply
    789,145.20x = 1,183,134.60 × 434,559.60
  4. Step 4: Simplify right side
    789,145.20x = 514,142,498,522.16
  5. Step 5: Solve for x
    x = 514,142,498,522.16/789,145.20
  6. Step 6: Final answer
    x = 651,518.25

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1.5x scale

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.