Finding the Fourth Proportional to 2,660,386.60, 3,992,135.10 and 977,660.20
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Solution
The fourth proportional to 2,660,386.60, 3,992,135.10 and 977,660.20 is: 1,467,061.82
Step by Step Solution
- Step 1: Write the proportion equation
2,660,386.60 : 3,992,135.10 = 977,660.20 : x - Step 2: Convert to fraction form
2,660,386.60/3,992,135.10 = 977,660.20/x - Step 3: Cross multiply
2,660,386.60x = 3,992,135.10 × 977,660.20 - Step 4: Simplify right side
2,660,386.60x = 3,902,951,600,293.02 - Step 5: Solve for x
x = 3,902,951,600,293.02/2,660,386.60 - Step 6: Final answer
x = 1,467,061.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.