Home / 905,514.55-1,358,334.68-306,273.13

Finding the Fourth Proportional to 905,514.55, 1,358,334.68 and 306,273.13

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Solution

The fourth proportional to 905,514.55, 1,358,334.68 and 306,273.13 is: 459,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,514.55 : 1,358,334.68 = 306,273.13 : x
  2. Step 2: Convert to fraction form
    905,514.55/1,358,334.68 = 306,273.13/x
  3. Step 3: Cross multiply
    905,514.55x = 1,358,334.68 × 306,273.13
  4. Step 4: Simplify right side
    905,514.55x = 416,021,409,103.95
  5. Step 5: Solve for x
    x = 416,021,409,103.95/905,514.55
  6. Step 6: Final answer
    x = 459,430.95

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Double scale
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Similar ratio
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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.