Finding the Fourth Proportional to 1,157,373.90, 1,597,139.82 and 641,107.08
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Solution
The fourth proportional to 1,157,373.90, 1,597,139.82 and 641,107.08 is: 884,707.74
Step by Step Solution
- Step 1: Write the proportion equation
1,157,373.90 : 1,597,139.82 = 641,107.08 : x - Step 2: Convert to fraction form
1,157,373.90/1,597,139.82 = 641,107.08/x - Step 3: Cross multiply
1,157,373.90x = 1,597,139.82 × 641,107.08 - Step 4: Simplify right side
1,157,373.90x = 1,023,937,646,351.93 - Step 5: Solve for x
x = 1,023,937,646,351.93/1,157,373.90 - Step 6: Final answer
x = 884,707.74
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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.