Finding the Fourth Proportional to 2,138,503.96, 2,951,135.40 and 1,171,670.86
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Solution
The fourth proportional to 2,138,503.96, 2,951,135.40 and 1,171,670.86 is: 1,616,905.75
Step by Step Solution
- Step 1: Write the proportion equation
2,138,503.96 : 2,951,135.40 = 1,171,670.86 : x - Step 2: Convert to fraction form
2,138,503.96/2,951,135.40 = 1,171,670.86/x - Step 3: Cross multiply
2,138,503.96x = 2,951,135.40 × 1,171,670.86 - Step 4: Simplify right side
2,138,503.96x = 3,457,759,352,094.44 - Step 5: Solve for x
x = 3,457,759,352,094.44/2,138,503.96 - Step 6: Final answer
x = 1,616,905.75
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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.