Finding the Fourth Proportional to 980,638.84, 1,353,250.29 and 545,054.05
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Solution
The fourth proportional to 980,638.84, 1,353,250.29 and 545,054.05 is: 752,157.19
Step by Step Solution
- Step 1: Write the proportion equation
980,638.84 : 1,353,250.29 = 545,054.05 : x - Step 2: Convert to fraction form
980,638.84/1,353,250.29 = 545,054.05/x - Step 3: Cross multiply
980,638.84x = 1,353,250.29 × 545,054.05 - Step 4: Simplify right side
980,638.84x = 737,594,551,228.18 - Step 5: Solve for x
x = 737,594,551,228.18/980,638.84 - Step 6: Final answer
x = 752,157.19
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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.