Finding the Fourth Proportional to 1,020,508.99, 1,531,709.34 and 515,424.67
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Solution
The fourth proportional to 1,020,508.99, 1,531,709.34 and 515,424.67 is: 773,614.72
Step by Step Solution
- Step 1: Write the proportion equation
1,020,508.99 : 1,531,709.34 = 515,424.67 : x - Step 2: Convert to fraction form
1,020,508.99/1,531,709.34 = 515,424.67/x - Step 3: Cross multiply
1,020,508.99x = 1,531,709.34 × 515,424.67 - Step 4: Simplify right side
1,020,508.99x = 789,480,778,242.57 - Step 5: Solve for x
x = 789,480,778,242.57/1,020,508.99 - Step 6: Final answer
x = 773,614.72
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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.