Finding the Fourth Proportional to 1,781,897.56, 2,456,639.85 and 1,415,590.09
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Solution
The fourth proportional to 1,781,897.56, 2,456,639.85 and 1,415,590.09 is: 1,951,624.55
Step by Step Solution
- Step 1: Write the proportion equation
1,781,897.56 : 2,456,639.85 = 1,415,590.09 : x - Step 2: Convert to fraction form
1,781,897.56/2,456,639.85 = 1,415,590.09/x - Step 3: Cross multiply
1,781,897.56x = 2,456,639.85 × 1,415,590.09 - Step 4: Simplify right side
1,781,897.56x = 3,477,595,026,359.09 - Step 5: Solve for x
x = 3,477,595,026,359.09/1,781,897.56 - Step 6: Final answer
x = 1,951,624.55
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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.