Home / 994,400.85-1,490,602.50-319,986.48

Finding the Fourth Proportional to 994,400.85, 1,490,602.50 and 319,986.48

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Solution

The fourth proportional to 994,400.85, 1,490,602.50 and 319,986.48 is: 479,658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,400.85 : 1,490,602.50 = 319,986.48 : x
  2. Step 2: Convert to fraction form
    994,400.85/1,490,602.50 = 319,986.48/x
  3. Step 3: Cross multiply
    994,400.85x = 1,490,602.50 × 319,986.48
  4. Step 4: Simplify right side
    994,400.85x = 476,972,647,054.20
  5. Step 5: Solve for x
    x = 476,972,647,054.20/994,400.85
  6. Step 6: Final answer
    x = 479,658.33

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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.