Finding the Fourth Proportional to 515,102.70, 770,904.45 and 452,117.10
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Solution
The fourth proportional to 515,102.70, 770,904.45 and 452,117.10 is: 676,639.99
Step by Step Solution
- Step 1: Write the proportion equation
515,102.70 : 770,904.45 = 452,117.10 : x - Step 2: Convert to fraction form
515,102.70/770,904.45 = 452,117.10/x - Step 3: Cross multiply
515,102.70x = 770,904.45 × 452,117.10 - Step 4: Simplify right side
515,102.70x = 348,539,084,311.10 - Step 5: Solve for x
x = 348,539,084,311.10/515,102.70 - Step 6: Final answer
x = 676,639.99
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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.