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Finding the Fourth Proportional to 560,145.24, 772,991.10 and 305,481.24

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Solution

The fourth proportional to 560,145.24, 772,991.10 and 305,481.24 is: 421,559.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,145.24 : 772,991.10 = 305,481.24 : x
  2. Step 2: Convert to fraction form
    560,145.24/772,991.10 = 305,481.24/x
  3. Step 3: Cross multiply
    560,145.24x = 772,991.10 × 305,481.24
  4. Step 4: Simplify right side
    560,145.24x = 236,134,279,736.96
  5. Step 5: Solve for x
    x = 236,134,279,736.96/560,145.24
  6. Step 6: Final answer
    x = 421,559.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.