Finding the Fourth Proportional to 1,125,534.36, 1,553,385.24 and 641,988.48
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Solution
The fourth proportional to 1,125,534.36, 1,553,385.24 and 641,988.48 is: 886,028.42
Step by Step Solution
- Step 1: Write the proportion equation
1,125,534.36 : 1,553,385.24 = 641,988.48 : x - Step 2: Convert to fraction form
1,125,534.36/1,553,385.24 = 641,988.48/x - Step 3: Cross multiply
1,125,534.36x = 1,553,385.24 × 641,988.48 - Step 4: Simplify right side
1,125,534.36x = 997,255,429,082.04 - Step 5: Solve for x
x = 997,255,429,082.04/1,125,534.36 - Step 6: Final answer
x = 886,028.42
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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.