Finding the Fourth Proportional to 910,651.32, 1,257,124.05 and 528,604.56
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Solution
The fourth proportional to 910,651.32, 1,257,124.05 and 528,604.56 is: 729,721.12
Step by Step Solution
- Step 1: Write the proportion equation
910,651.32 : 1,257,124.05 = 528,604.56 : x - Step 2: Convert to fraction form
910,651.32/1,257,124.05 = 528,604.56/x - Step 3: Cross multiply
910,651.32x = 1,257,124.05 × 528,604.56 - Step 4: Simplify right side
910,651.32x = 664,521,505,315.67 - Step 5: Solve for x
x = 664,521,505,315.67/910,651.32 - Step 6: Final answer
x = 729,721.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.