Home / 513,210.28-764,403.77-490,183.60

Finding the Fourth Proportional to 513,210.28, 764,403.77 and 490,183.60

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Solution

The fourth proportional to 513,210.28, 764,403.77 and 490,183.60 is: 730,106.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,210.28 : 764,403.77 = 490,183.60 : x
  2. Step 2: Convert to fraction form
    513,210.28/764,403.77 = 490,183.60/x
  3. Step 3: Cross multiply
    513,210.28x = 764,403.77 × 490,183.60
  4. Step 4: Simplify right side
    513,210.28x = 374,698,191,832.17
  5. Step 5: Solve for x
    x = 374,698,191,832.17/513,210.28
  6. Step 6: Final answer
    x = 730,106.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.