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Finding the Fourth Proportional to 560,482.40, 773,484.36 and 305,847.56

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Solution

The fourth proportional to 560,482.40, 773,484.36 and 305,847.56 is: 422,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,482.40 : 773,484.36 = 305,847.56 : x
  2. Step 2: Convert to fraction form
    560,482.40/773,484.36 = 305,847.56/x
  3. Step 3: Cross multiply
    560,482.40x = 773,484.36 × 305,847.56
  4. Step 4: Simplify right side
    560,482.40x = 236,568,304,204.16
  5. Step 5: Solve for x
    x = 236,568,304,204.16/560,482.40
  6. Step 6: Final answer
    x = 422,079.81

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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.