Finding the Fourth Proportional to 2,113,319.92, 2,916,381.46 and 1,207,921.36
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Solution
The fourth proportional to 2,113,319.92, 2,916,381.46 and 1,207,921.36 is: 1,666,931.46
Step by Step Solution
- Step 1: Write the proportion equation
2,113,319.92 : 2,916,381.46 = 1,207,921.36 : x - Step 2: Convert to fraction form
2,113,319.92/2,916,381.46 = 1,207,921.36/x - Step 3: Cross multiply
2,113,319.92x = 2,916,381.46 × 1,207,921.36 - Step 4: Simplify right side
2,113,319.92x = 3,522,759,459,441.99 - Step 5: Solve for x
x = 3,522,759,459,441.99/2,113,319.92 - Step 6: Final answer
x = 1,666,931.46
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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.