Finding the Fourth Proportional to 2,098,986.60, 3,148,479.90 and 769,117.80
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Solution
The fourth proportional to 2,098,986.60, 3,148,479.90 and 769,117.80 is: 1,153,676.70
Step by Step Solution
- Step 1: Write the proportion equation
2,098,986.60 : 3,148,479.90 = 769,117.80 : x - Step 2: Convert to fraction form
2,098,986.60/3,148,479.90 = 769,117.80/x - Step 3: Cross multiply
2,098,986.60x = 3,148,479.90 × 769,117.80 - Step 4: Simplify right side
2,098,986.60x = 2,421,551,934,032.22 - Step 5: Solve for x
x = 2,421,551,934,032.22/2,098,986.60 - Step 6: Final answer
x = 1,153,676.70
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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.