Home / 994,399.85-1,490,601-319,985.48

Finding the Fourth Proportional to 994,399.85, 1,490,601 and 319,985.48

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Solution

The fourth proportional to 994,399.85, 1,490,601 and 319,985.48 is: 479,656.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,399.85 : 1,490,601 = 319,985.48 : x
  2. Step 2: Convert to fraction form
    994,399.85/1,490,601 = 319,985.48/x
  3. Step 3: Cross multiply
    994,399.85x = 1,490,601 × 319,985.48
  4. Step 4: Simplify right side
    994,399.85x = 476,970,676,473.48
  5. Step 5: Solve for x
    x = 476,970,676,473.48/994,399.85
  6. Step 6: Final answer
    x = 479,656.83

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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.