Finding the Fourth Proportional to 1,781,979.87, 2,459,244.20 and 977,163.87
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Solution
The fourth proportional to 1,781,979.87, 2,459,244.20 and 977,163.87 is: 1,348,547.54
Step by Step Solution
- Step 1: Write the proportion equation
1,781,979.87 : 2,459,244.20 = 977,163.87 : x - Step 2: Convert to fraction form
1,781,979.87/2,459,244.20 = 977,163.87/x - Step 3: Cross multiply
1,781,979.87x = 2,459,244.20 × 977,163.87 - Step 4: Simplify right side
1,781,979.87x = 2,403,084,574,861.23 - Step 5: Solve for x
x = 2,403,084,574,861.23/1,781,979.87 - Step 6: Final answer
x = 1,348,547.54
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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.