Finding the Fourth Proportional to 1,134,977.79, 1,566,286.71 and 618,731.99
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Solution
The fourth proportional to 1,134,977.79, 1,566,286.71 and 618,731.99 is: 853,859.60
Step by Step Solution
- Step 1: Write the proportion equation
1,134,977.79 : 1,566,286.71 = 618,731.99 : x - Step 2: Convert to fraction form
1,134,977.79/1,566,286.71 = 618,731.99/x - Step 3: Cross multiply
1,134,977.79x = 1,566,286.71 × 618,731.99 - Step 4: Simplify right side
1,134,977.79x = 969,111,685,157.42 - Step 5: Solve for x
x = 969,111,685,157.42/1,134,977.79 - Step 6: Final answer
x = 853,859.60
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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.