Home / 740,266.80-1,110,659.40-319,844.40

Finding the Fourth Proportional to 740,266.80, 1,110,659.40 and 319,844.40

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Solution

The fourth proportional to 740,266.80, 1,110,659.40 and 319,844.40 is: 479,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,266.80 : 1,110,659.40 = 319,844.40 : x
  2. Step 2: Convert to fraction form
    740,266.80/1,110,659.40 = 319,844.40/x
  3. Step 3: Cross multiply
    740,266.80x = 1,110,659.40 × 319,844.40
  4. Step 4: Simplify right side
    740,266.80x = 355,238,189,397.36
  5. Step 5: Solve for x
    x = 355,238,189,397.36/740,266.80
  6. Step 6: Final answer
    x = 479,878.59

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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.