Finding the Fourth Proportional to 936,911.79, 1,292,936.78 and 507,191.81
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Solution
The fourth proportional to 936,911.79, 1,292,936.78 and 507,191.81 is: 699,923.88
Step by Step Solution
- Step 1: Write the proportion equation
936,911.79 : 1,292,936.78 = 507,191.81 : x - Step 2: Convert to fraction form
936,911.79/1,292,936.78 = 507,191.81/x - Step 3: Cross multiply
936,911.79x = 1,292,936.78 × 507,191.81 - Step 4: Simplify right side
936,911.79x = 655,766,936,663.13 - Step 5: Solve for x
x = 655,766,936,663.13/936,911.79 - Step 6: Final answer
x = 699,923.88
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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.