Home / 740,034.20-1,110,569.70-319,611.80

Finding the Fourth Proportional to 740,034.20, 1,110,569.70 and 319,611.80

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Solution

The fourth proportional to 740,034.20, 1,110,569.70 and 319,611.80 is: 479,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,034.20 : 1,110,569.70 = 319,611.80 : x
  2. Step 2: Convert to fraction form
    740,034.20/1,110,569.70 = 319,611.80/x
  3. Step 3: Cross multiply
    740,034.20x = 1,110,569.70 × 319,611.80
  4. Step 4: Simplify right side
    740,034.20x = 354,951,180,842.46
  5. Step 5: Solve for x
    x = 354,951,180,842.46/740,034.20
  6. Step 6: Final answer
    x = 479,641.59

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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.