Home / 740,284.20-1,110,944.70-319,861.80

Finding the Fourth Proportional to 740,284.20, 1,110,944.70 and 319,861.80

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Solution

The fourth proportional to 740,284.20, 1,110,944.70 and 319,861.80 is: 480,016.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,284.20 : 1,110,944.70 = 319,861.80 : x
  2. Step 2: Convert to fraction form
    740,284.20/1,110,944.70 = 319,861.80/x
  3. Step 3: Cross multiply
    740,284.20x = 1,110,944.70 × 319,861.80
  4. Step 4: Simplify right side
    740,284.20x = 355,348,771,442.46
  5. Step 5: Solve for x
    x = 355,348,771,442.46/740,284.20
  6. Step 6: Final answer
    x = 480,016.69

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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.