Finding the Fourth Proportional to 936,328.05, 1,292,137.13 and 528,447.08
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Solution
The fourth proportional to 936,328.05, 1,292,137.13 and 528,447.08 is: 729,259.47
Step by Step Solution
- Step 1: Write the proportion equation
936,328.05 : 1,292,137.13 = 528,447.08 : x - Step 2: Convert to fraction form
936,328.05/1,292,137.13 = 528,447.08/x - Step 3: Cross multiply
936,328.05x = 1,292,137.13 × 528,447.08 - Step 4: Simplify right side
936,328.05x = 682,826,097,859.54 - Step 5: Solve for x
x = 682,826,097,859.54/936,328.05 - Step 6: Final answer
x = 729,259.47
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1.5x scale
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.