Home / 855,018.35-1,179,821.60-492,559.55

Finding the Fourth Proportional to 855,018.35, 1,179,821.60 and 492,559.55

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Solution

The fourth proportional to 855,018.35, 1,179,821.60 and 492,559.55 is: 679,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,018.35 : 1,179,821.60 = 492,559.55 : x
  2. Step 2: Convert to fraction form
    855,018.35/1,179,821.60 = 492,559.55/x
  3. Step 3: Cross multiply
    855,018.35x = 1,179,821.60 × 492,559.55
  4. Step 4: Simplify right side
    855,018.35x = 581,132,397,607.68
  5. Step 5: Solve for x
    x = 581,132,397,607.68/855,018.35
  6. Step 6: Final answer
    x = 679,672.43

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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.