Finding the Fourth Proportional to 659,840.70, 910,590.78 and 358,034.70
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Solution
The fourth proportional to 659,840.70, 910,590.78 and 358,034.70 is: 494,093.65
Step by Step Solution
- Step 1: Write the proportion equation
659,840.70 : 910,590.78 = 358,034.70 : x - Step 2: Convert to fraction form
659,840.70/910,590.78 = 358,034.70/x - Step 3: Cross multiply
659,840.70x = 910,590.78 × 358,034.70 - Step 4: Simplify right side
659,840.70x = 326,023,096,740.07 - Step 5: Solve for x
x = 326,023,096,740.07/659,840.70 - Step 6: Final answer
x = 494,093.65
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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.