Home / 845,045.37-1,266,682.31-312,226.56

Finding the Fourth Proportional to 845,045.37, 1,266,682.31 and 312,226.56

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Solution

The fourth proportional to 845,045.37, 1,266,682.31 and 312,226.56 is: 468,012.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,045.37 : 1,266,682.31 = 312,226.56 : x
  2. Step 2: Convert to fraction form
    845,045.37/1,266,682.31 = 312,226.56/x
  3. Step 3: Cross multiply
    845,045.37x = 1,266,682.31 × 312,226.56
  4. Step 4: Simplify right side
    845,045.37x = 395,491,858,703.02
  5. Step 5: Solve for x
    x = 395,491,858,703.02/845,045.37
  6. Step 6: Final answer
    x = 468,012.57

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.