Home / 857,313.60-1,285,581.60-324,657.60

Finding the Fourth Proportional to 857,313.60, 1,285,581.60 and 324,657.60

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Solution

The fourth proportional to 857,313.60, 1,285,581.60 and 324,657.60 is: 486,839.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,313.60 : 1,285,581.60 = 324,657.60 : x
  2. Step 2: Convert to fraction form
    857,313.60/1,285,581.60 = 324,657.60/x
  3. Step 3: Cross multiply
    857,313.60x = 1,285,581.60 × 324,657.60
  4. Step 4: Simplify right side
    857,313.60x = 417,373,836,860.16
  5. Step 5: Solve for x
    x = 417,373,836,860.16/857,313.60
  6. Step 6: Final answer
    x = 486,839.16

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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.