Finding the Fourth Proportional to 689,751.18, 951,939.46 and 417,811.09
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Solution
The fourth proportional to 689,751.18, 951,939.46 and 417,811.09 is: 576,629.48
Step by Step Solution
- Step 1: Write the proportion equation
689,751.18 : 951,939.46 = 417,811.09 : x - Step 2: Convert to fraction form
689,751.18/951,939.46 = 417,811.09/x - Step 3: Cross multiply
689,751.18x = 951,939.46 × 417,811.09 - Step 4: Simplify right side
689,751.18x = 397,730,863,396.61 - Step 5: Solve for x
x = 397,730,863,396.61/689,751.18 - Step 6: Final answer
x = 576,629.48
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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.