Finding the Fourth Proportional to 1,315,546.08, 1,815,459.12 and 742,593.12
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Solution
The fourth proportional to 1,315,546.08, 1,815,459.12 and 742,593.12 is: 1,024,781.63
Step by Step Solution
- Step 1: Write the proportion equation
1,315,546.08 : 1,815,459.12 = 742,593.12 : x - Step 2: Convert to fraction form
1,315,546.08/1,815,459.12 = 742,593.12/x - Step 3: Cross multiply
1,315,546.08x = 1,815,459.12 × 742,593.12 - Step 4: Simplify right side
1,315,546.08x = 1,348,147,452,153.25 - Step 5: Solve for x
x = 1,348,147,452,153.25/1,315,546.08 - Step 6: Final answer
x = 1,024,781.63
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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.