Home / 740,036.20-1,110,572.70-319,613.80

Finding the Fourth Proportional to 740,036.20, 1,110,572.70 and 319,613.80

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Solution

The fourth proportional to 740,036.20, 1,110,572.70 and 319,613.80 is: 479,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,036.20 : 1,110,572.70 = 319,613.80 : x
  2. Step 2: Convert to fraction form
    740,036.20/1,110,572.70 = 319,613.80/x
  3. Step 3: Cross multiply
    740,036.20x = 1,110,572.70 × 319,613.80
  4. Step 4: Simplify right side
    740,036.20x = 354,954,360,823.26
  5. Step 5: Solve for x
    x = 354,954,360,823.26/740,036.20
  6. Step 6: Final answer
    x = 479,644.59

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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.