Finding the Fourth Proportional to 497,138.70, 745,708.05 and 497,138.70
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Solution
The fourth proportional to 497,138.70, 745,708.05 and 497,138.70 is: 745,708.05
Step by Step Solution
- Step 1: Write the proportion equation
497,138.70 : 745,708.05 = 497,138.70 : x - Step 2: Convert to fraction form
497,138.70/745,708.05 = 497,138.70/x - Step 3: Cross multiply
497,138.70x = 745,708.05 × 497,138.70 - Step 4: Simplify right side
497,138.70x = 370,720,330,556.54 - Step 5: Solve for x
x = 370,720,330,556.54/497,138.70 - Step 6: Final answer
x = 745,708.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.