Home / 905,012.48-1,357,521.96-305,978.96

Finding the Fourth Proportional to 905,012.48, 1,357,521.96 and 305,978.96

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Solution

The fourth proportional to 905,012.48, 1,357,521.96 and 305,978.96 is: 458,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,012.48 : 1,357,521.96 = 305,978.96 : x
  2. Step 2: Convert to fraction form
    905,012.48/1,357,521.96 = 305,978.96/x
  3. Step 3: Cross multiply
    905,012.48x = 1,357,521.96 × 305,978.96
  4. Step 4: Simplify right side
    905,012.48x = 415,373,157,497.96
  5. Step 5: Solve for x
    x = 415,373,157,497.96/905,012.48
  6. Step 6: Final answer
    x = 458,969.54

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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.