Finding the Fourth Proportional to 910,877.20, 1,257,121.42 and 528,904.08
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Solution
The fourth proportional to 910,877.20, 1,257,121.42 and 528,904.08 is: 729,952.02
Step by Step Solution
- Step 1: Write the proportion equation
910,877.20 : 1,257,121.42 = 528,904.08 : x - Step 2: Convert to fraction form
910,877.20/1,257,121.42 = 528,904.08/x - Step 3: Cross multiply
910,877.20x = 1,257,121.42 × 528,904.08 - Step 4: Simplify right side
910,877.20x = 664,896,646,771.13 - Step 5: Solve for x
x = 664,896,646,771.13/910,877.20 - Step 6: Final answer
x = 729,952.02
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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.