Finding the Fourth Proportional to 1,615,731.18, 2,229,607.62 and 890,538.98
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Solution
The fourth proportional to 1,615,731.18, 2,229,607.62 and 890,538.98 is: 1,228,887.90
Step by Step Solution
- Step 1: Write the proportion equation
1,615,731.18 : 2,229,607.62 = 890,538.98 : x - Step 2: Convert to fraction form
1,615,731.18/2,229,607.62 = 890,538.98/x - Step 3: Cross multiply
1,615,731.18x = 2,229,607.62 × 890,538.98 - Step 4: Simplify right side
1,615,731.18x = 1,985,552,495,715.03 - Step 5: Solve for x
x = 1,985,552,495,715.03/1,615,731.18 - Step 6: Final answer
x = 1,228,887.90
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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.