Home / 780,285.12-1,077,257.52-494,050.56

Finding the Fourth Proportional to 780,285.12, 1,077,257.52 and 494,050.56

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Solution

The fourth proportional to 780,285.12, 1,077,257.52 and 494,050.56 is: 682,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,285.12 : 1,077,257.52 = 494,050.56 : x
  2. Step 2: Convert to fraction form
    780,285.12/1,077,257.52 = 494,050.56/x
  3. Step 3: Cross multiply
    780,285.12x = 1,077,257.52 × 494,050.56
  4. Step 4: Simplify right side
    780,285.12x = 532,219,681,020.21
  5. Step 5: Solve for x
    x = 532,219,681,020.21/780,285.12
  6. Step 6: Final answer
    x = 682,083.60

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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.