Home / 789,151.86-1,183,210.20-447,600.78

Finding the Fourth Proportional to 789,151.86, 1,183,210.20 and 447,600.78

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Solution

The fourth proportional to 789,151.86, 1,183,210.20 and 447,600.78 is: 671,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,151.86 : 1,183,210.20 = 447,600.78 : x
  2. Step 2: Convert to fraction form
    789,151.86/1,183,210.20 = 447,600.78/x
  3. Step 3: Cross multiply
    789,151.86x = 1,183,210.20 × 447,600.78
  4. Step 4: Simplify right side
    789,151.86x = 529,605,808,423.96
  5. Step 5: Solve for x
    x = 529,605,808,423.96/789,151.86
  6. Step 6: Final answer
    x = 671,107.60

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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.