Home / 918,571.97-1,377,889.04-319,538.31

Finding the Fourth Proportional to 918,571.97, 1,377,889.04 and 319,538.31

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Solution

The fourth proportional to 918,571.97, 1,377,889.04 and 319,538.31 is: 479,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,571.97 : 1,377,889.04 = 319,538.31 : x
  2. Step 2: Convert to fraction form
    918,571.97/1,377,889.04 = 319,538.31/x
  3. Step 3: Cross multiply
    918,571.97x = 1,377,889.04 × 319,538.31
  4. Step 4: Simplify right side
    918,571.97x = 440,288,330,840.88
  5. Step 5: Solve for x
    x = 440,288,330,840.88/918,571.97
  6. Step 6: Final answer
    x = 479,318.27

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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.