Home / 756,015.60-1,133,148.60-306,514.20

Finding the Fourth Proportional to 756,015.60, 1,133,148.60 and 306,514.20

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Solution

The fourth proportional to 756,015.60, 1,133,148.60 and 306,514.20 is: 459,416.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,015.60 : 1,133,148.60 = 306,514.20 : x
  2. Step 2: Convert to fraction form
    756,015.60/1,133,148.60 = 306,514.20/x
  3. Step 3: Cross multiply
    756,015.60x = 1,133,148.60 × 306,514.20
  4. Step 4: Simplify right side
    756,015.60x = 347,326,136,610.12
  5. Step 5: Solve for x
    x = 347,326,136,610.12/756,015.60
  6. Step 6: Final answer
    x = 459,416.63

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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.