Finding the Fourth Proportional to 1,579,129.60, 2,179,171.68 and 890,802.92
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Solution
The fourth proportional to 1,579,129.60, 2,179,171.68 and 890,802.92 is: 1,229,292.70
Step by Step Solution
- Step 1: Write the proportion equation
1,579,129.60 : 2,179,171.68 = 890,802.92 : x - Step 2: Convert to fraction form
1,579,129.60/2,179,171.68 = 890,802.92/x - Step 3: Cross multiply
1,579,129.60x = 2,179,171.68 × 890,802.92 - Step 4: Simplify right side
1,579,129.60x = 1,941,212,495,725.31 - Step 5: Solve for x
x = 1,941,212,495,725.31/1,579,129.60 - Step 6: Final answer
x = 1,229,292.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.