Home / 693,941.12-1,040,108.48-319,177.60

Finding the Fourth Proportional to 693,941.12, 1,040,108.48 and 319,177.60

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Solution

The fourth proportional to 693,941.12, 1,040,108.48 and 319,177.60 is: 478,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,941.12 : 1,040,108.48 = 319,177.60 : x
  2. Step 2: Convert to fraction form
    693,941.12/1,040,108.48 = 319,177.60/x
  3. Step 3: Cross multiply
    693,941.12x = 1,040,108.48 × 319,177.60
  4. Step 4: Simplify right side
    693,941.12x = 331,979,328,386.05
  5. Step 5: Solve for x
    x = 331,979,328,386.05/693,941.12
  6. Step 6: Final answer
    x = 478,396.97

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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.