Finding the Fourth Proportional to 936,921.81, 1,292,951.88 and 507,201.60
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Solution
The fourth proportional to 936,921.81, 1,292,951.88 and 507,201.60 is: 699,938.09
Step by Step Solution
- Step 1: Write the proportion equation
936,921.81 : 1,292,951.88 = 507,201.60 : x - Step 2: Convert to fraction form
936,921.81/1,292,951.88 = 507,201.60/x - Step 3: Cross multiply
936,921.81x = 1,292,951.88 × 507,201.60 - Step 4: Simplify right side
936,921.81x = 655,787,262,259.01 - Step 5: Solve for x
x = 655,787,262,259.01/936,921.81 - Step 6: Final answer
x = 699,938.09
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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.