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Finding the Fourth Proportional to 560,320.12, 773,243.58 and 305,676.64

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Solution

The fourth proportional to 560,320.12, 773,243.58 and 305,676.64 is: 421,834.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,320.12 : 773,243.58 = 305,676.64 : x
  2. Step 2: Convert to fraction form
    560,320.12/773,243.58 = 305,676.64/x
  3. Step 3: Cross multiply
    560,320.12x = 773,243.58 × 305,676.64
  4. Step 4: Simplify right side
    560,320.12x = 236,362,499,435.97
  5. Step 5: Solve for x
    x = 236,362,499,435.97/560,320.12
  6. Step 6: Final answer
    x = 421,834.75

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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.