Finding the Fourth Proportional to 2,660,612.40, 3,990,918.60 and 977,497.20
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Solution
The fourth proportional to 2,660,612.40, 3,990,918.60 and 977,497.20 is: 1,466,245.80
Step by Step Solution
- Step 1: Write the proportion equation
2,660,612.40 : 3,990,918.60 = 977,497.20 : x - Step 2: Convert to fraction form
2,660,612.40/3,990,918.60 = 977,497.20/x - Step 3: Cross multiply
2,660,612.40x = 3,990,918.60 × 977,497.20 - Step 4: Simplify right side
2,660,612.40x = 3,901,111,756,927.92 - Step 5: Solve for x
x = 3,901,111,756,927.92/2,660,612.40 - Step 6: Final answer
x = 1,466,245.80
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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.