Finding the Fourth Proportional to 887,136.57, 1,224,247.28 and 505,163.37
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Solution
The fourth proportional to 887,136.57, 1,224,247.28 and 505,163.37 is: 697,124.77
Step by Step Solution
- Step 1: Write the proportion equation
887,136.57 : 1,224,247.28 = 505,163.37 : x - Step 2: Convert to fraction form
887,136.57/1,224,247.28 = 505,163.37/x - Step 3: Cross multiply
887,136.57x = 1,224,247.28 × 505,163.37 - Step 4: Simplify right side
887,136.57x = 618,444,879,152.32 - Step 5: Solve for x
x = 618,444,879,152.32/887,136.57 - Step 6: Final answer
x = 697,124.77
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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.