Finding the Fourth Proportional to 1,981,487.74, 2,970,214.17 and 781,763.26
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Solution
The fourth proportional to 1,981,487.74, 2,970,214.17 and 781,763.26 is: 1,171,848.94
Step by Step Solution
- Step 1: Write the proportion equation
1,981,487.74 : 2,970,214.17 = 781,763.26 : x - Step 2: Convert to fraction form
1,981,487.74/2,970,214.17 = 781,763.26/x - Step 3: Cross multiply
1,981,487.74x = 2,970,214.17 × 781,763.26 - Step 4: Simplify right side
1,981,487.74x = 2,322,004,312,437.39 - Step 5: Solve for x
x = 2,322,004,312,437.39/1,981,487.74 - Step 6: Final answer
x = 1,171,848.94
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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.