Finding the Fourth Proportional to 413,618.87, 620,953.29 and 351,683.03
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Solution
The fourth proportional to 413,618.87, 620,953.29 and 351,683.03 is: 527,970.92
Step by Step Solution
- Step 1: Write the proportion equation
413,618.87 : 620,953.29 = 351,683.03 : x - Step 2: Convert to fraction form
413,618.87/620,953.29 = 351,683.03/x - Step 3: Cross multiply
413,618.87x = 620,953.29 × 351,683.03 - Step 4: Simplify right side
413,618.87x = 218,378,736,068.05 - Step 5: Solve for x
x = 218,378,736,068.05/413,618.87 - Step 6: Final answer
x = 527,970.92
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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.