Finding the Fourth Proportional to 1,145,125.80, 1,717,688.70 and 515,269.80
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Solution
The fourth proportional to 1,145,125.80, 1,717,688.70 and 515,269.80 is: 772,904.70
Step by Step Solution
- Step 1: Write the proportion equation
1,145,125.80 : 1,717,688.70 = 515,269.80 : x - Step 2: Convert to fraction form
1,145,125.80/1,717,688.70 = 515,269.80/x - Step 3: Cross multiply
1,145,125.80x = 1,717,688.70 × 515,269.80 - Step 4: Simplify right side
1,145,125.80x = 885,073,112,911.26 - Step 5: Solve for x
x = 885,073,112,911.26/1,145,125.80 - Step 6: Final answer
x = 772,904.70
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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.