Finding the Fourth Proportional to 1,781,981.12, 2,459,245.92 and 977,165.12
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Solution
The fourth proportional to 1,781,981.12, 2,459,245.92 and 977,165.12 is: 1,348,549.27
Step by Step Solution
- Step 1: Write the proportion equation
1,781,981.12 : 2,459,245.92 = 977,165.12 : x - Step 2: Convert to fraction form
1,781,981.12/2,459,245.92 = 977,165.12/x - Step 3: Cross multiply
1,781,981.12x = 2,459,245.92 × 977,165.12 - Step 4: Simplify right side
1,781,981.12x = 2,403,089,334,526.31 - Step 5: Solve for x
x = 2,403,089,334,526.31/1,781,981.12 - Step 6: Final answer
x = 1,348,549.27
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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.