Finding the Fourth Proportional to 664,958.16, 998,320.14 and 310,220.28
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Solution
The fourth proportional to 664,958.16, 998,320.14 and 310,220.28 is: 465,742.32
Step by Step Solution
- Step 1: Write the proportion equation
664,958.16 : 998,320.14 = 310,220.28 : x - Step 2: Convert to fraction form
664,958.16/998,320.14 = 310,220.28/x - Step 3: Cross multiply
664,958.16x = 998,320.14 × 310,220.28 - Step 4: Simplify right side
664,958.16x = 309,699,153,360.44 - Step 5: Solve for x
x = 309,699,153,360.44/664,958.16 - Step 6: Final answer
x = 465,742.32
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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.