Finding the Fourth Proportional to 818,130.62, 1,128,997.10 and 445,585.08
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Solution
The fourth proportional to 818,130.62, 1,128,997.10 and 445,585.08 is: 614,894.80
Step by Step Solution
- Step 1: Write the proportion equation
818,130.62 : 1,128,997.10 = 445,585.08 : x - Step 2: Convert to fraction form
818,130.62/1,128,997.10 = 445,585.08/x - Step 3: Cross multiply
818,130.62x = 1,128,997.10 × 445,585.08 - Step 4: Simplify right side
818,130.62x = 503,064,259,180.01 - Step 5: Solve for x
x = 503,064,259,180.01/818,130.62 - Step 6: Final answer
x = 614,894.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.