Finding the Fourth Proportional to 2,128,637.70, 3,192,956.55 and 865,815.30
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Solution
The fourth proportional to 2,128,637.70, 3,192,956.55 and 865,815.30 is: 1,298,722.95
Step by Step Solution
- Step 1: Write the proportion equation
2,128,637.70 : 3,192,956.55 = 865,815.30 : x - Step 2: Convert to fraction form
2,128,637.70/3,192,956.55 = 865,815.30/x - Step 3: Cross multiply
2,128,637.70x = 3,192,956.55 × 865,815.30 - Step 4: Simplify right side
2,128,637.70x = 2,764,510,633,225.22 - Step 5: Solve for x
x = 2,764,510,633,225.22/2,128,637.70 - Step 6: Final answer
x = 1,298,722.95
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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.