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Finding the Fourth Proportional to 560,507.40, 773,518.92 and 305,872.56

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Solution

The fourth proportional to 560,507.40, 773,518.92 and 305,872.56 is: 422,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,507.40 : 773,518.92 = 305,872.56 : x
  2. Step 2: Convert to fraction form
    560,507.40/773,518.92 = 305,872.56/x
  3. Step 3: Cross multiply
    560,507.40x = 773,518.92 × 305,872.56
  4. Step 4: Simplify right side
    560,507.40x = 236,598,212,268.84
  5. Step 5: Solve for x
    x = 236,598,212,268.84/560,507.40
  6. Step 6: Final answer
    x = 422,114.34

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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.