Finding the Fourth Proportional to 2,166,496.70, 2,992,879.70 and 1,730,341.40
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Solution
The fourth proportional to 2,166,496.70, 2,992,879.70 and 1,730,341.40 is: 2,390,358.43
Step by Step Solution
- Step 1: Write the proportion equation
2,166,496.70 : 2,992,879.70 = 1,730,341.40 : x - Step 2: Convert to fraction form
2,166,496.70/2,992,879.70 = 1,730,341.40/x - Step 3: Cross multiply
2,166,496.70x = 2,992,879.70 × 1,730,341.40 - Step 4: Simplify right side
2,166,496.70x = 5,178,703,650,129.58 - Step 5: Solve for x
x = 5,178,703,650,129.58/2,166,496.70 - Step 6: Final answer
x = 2,390,358.43
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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.