Finding the Fourth Proportional to 740,457.67, 1,110,466.44 and 313,987.21
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Solution
The fourth proportional to 740,457.67, 1,110,466.44 and 313,987.21 is: 470,887.50
Step by Step Solution
- Step 1: Write the proportion equation
740,457.67 : 1,110,466.44 = 313,987.21 : x - Step 2: Convert to fraction form
740,457.67/1,110,466.44 = 313,987.21/x - Step 3: Cross multiply
740,457.67x = 1,110,466.44 × 313,987.21 - Step 4: Simplify right side
740,457.67x = 348,672,259,294.23 - Step 5: Solve for x
x = 348,672,259,294.23/740,457.67 - Step 6: Final answer
x = 470,887.50
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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.