Finding the Fourth Proportional to 1,919,948.67, 2,649,478.55 and 1,060,490.48
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Solution
The fourth proportional to 1,919,948.67, 2,649,478.55 and 1,060,490.48 is: 1,463,448.90
Step by Step Solution
- Step 1: Write the proportion equation
1,919,948.67 : 2,649,478.55 = 1,060,490.48 : x - Step 2: Convert to fraction form
1,919,948.67/2,649,478.55 = 1,060,490.48/x - Step 3: Cross multiply
1,919,948.67x = 2,649,478.55 × 1,060,490.48 - Step 4: Simplify right side
1,919,948.67x = 2,809,746,760,689.36 - Step 5: Solve for x
x = 2,809,746,760,689.36/1,919,948.67 - Step 6: Final answer
x = 1,463,448.90
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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.