Home / 724,782.88-1,086,822.64-303,945.76

Finding the Fourth Proportional to 724,782.88, 1,086,822.64 and 303,945.76

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Solution

The fourth proportional to 724,782.88, 1,086,822.64 and 303,945.76 is: 455,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,782.88 : 1,086,822.64 = 303,945.76 : x
  2. Step 2: Convert to fraction form
    724,782.88/1,086,822.64 = 303,945.76/x
  3. Step 3: Cross multiply
    724,782.88x = 1,086,822.64 × 303,945.76
  4. Step 4: Simplify right side
    724,782.88x = 330,335,133,300.01
  5. Step 5: Solve for x
    x = 330,335,133,300.01/724,782.88
  6. Step 6: Final answer
    x = 455,771.16

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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.