Finding the Fourth Proportional to 2,126,319.96, 3,188,544.12 and 778,132.20
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Solution
The fourth proportional to 2,126,319.96, 3,188,544.12 and 778,132.20 is: 1,166,855.83
Step by Step Solution
- Step 1: Write the proportion equation
2,126,319.96 : 3,188,544.12 = 778,132.20 : x - Step 2: Convert to fraction form
2,126,319.96/3,188,544.12 = 778,132.20/x - Step 3: Cross multiply
2,126,319.96x = 3,188,544.12 × 778,132.20 - Step 4: Simplify right side
2,126,319.96x = 2,481,108,850,892.66 - Step 5: Solve for x
x = 2,481,108,850,892.66/2,126,319.96 - Step 6: Final answer
x = 1,166,855.83
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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.