Finding the Fourth Proportional to 1,230,974.05, 1,699,027.62 and 721,840.45
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Solution
The fourth proportional to 1,230,974.05, 1,699,027.62 and 721,840.45 is: 996,306.02
Step by Step Solution
- Step 1: Write the proportion equation
1,230,974.05 : 1,699,027.62 = 721,840.45 : x - Step 2: Convert to fraction form
1,230,974.05/1,699,027.62 = 721,840.45/x - Step 3: Cross multiply
1,230,974.05x = 1,699,027.62 × 721,840.45 - Step 4: Simplify right side
1,230,974.05x = 1,226,426,861,783.23 - Step 5: Solve for x
x = 1,226,426,861,783.23/1,230,974.05 - Step 6: Final answer
x = 996,306.02
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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.