Finding the Fourth Proportional to 2,154,125.98, 2,972,711.95 and 1,187,258.75
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Solution
The fourth proportional to 2,154,125.98, 2,972,711.95 and 1,187,258.75 is: 1,638,427.05
Step by Step Solution
- Step 1: Write the proportion equation
2,154,125.98 : 2,972,711.95 = 1,187,258.75 : x - Step 2: Convert to fraction form
2,154,125.98/2,972,711.95 = 1,187,258.75/x - Step 3: Cross multiply
2,154,125.98x = 2,972,711.95 × 1,187,258.75 - Step 4: Simplify right side
2,154,125.98x = 3,529,378,267,183.03 - Step 5: Solve for x
x = 3,529,378,267,183.03/2,154,125.98 - Step 6: Final answer
x = 1,638,427.05
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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.