Home / 905,476.70-1,358,132.01-306,369.25

Finding the Fourth Proportional to 905,476.70, 1,358,132.01 and 306,369.25

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Solution

The fourth proportional to 905,476.70, 1,358,132.01 and 306,369.25 is: 459,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,476.70 : 1,358,132.01 = 306,369.25 : x
  2. Step 2: Convert to fraction form
    905,476.70/1,358,132.01 = 306,369.25/x
  3. Step 3: Cross multiply
    905,476.70x = 1,358,132.01 × 306,369.25
  4. Step 4: Simplify right side
    905,476.70x = 416,089,878,514.03
  5. Step 5: Solve for x
    x = 416,089,878,514.03/905,476.70
  6. Step 6: Final answer
    x = 459,525.77

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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.