Home / 758,930.96-1,047,235.56-419,378.96

Finding the Fourth Proportional to 758,930.96, 1,047,235.56 and 419,378.96

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Solution

The fourth proportional to 758,930.96, 1,047,235.56 and 419,378.96 is: 578,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,930.96 : 1,047,235.56 = 419,378.96 : x
  2. Step 2: Convert to fraction form
    758,930.96/1,047,235.56 = 419,378.96/x
  3. Step 3: Cross multiply
    758,930.96x = 1,047,235.56 × 419,378.96
  4. Step 4: Simplify right side
    758,930.96x = 439,188,560,027.82
  5. Step 5: Solve for x
    x = 439,188,560,027.82/758,930.96
  6. Step 6: Final answer
    x = 578,693.69

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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.