Finding the Fourth Proportional to 1,125,512.52, 1,553,355.48 and 641,966.80
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Solution
The fourth proportional to 1,125,512.52, 1,553,355.48 and 641,966.80 is: 885,998.72
Step by Step Solution
- Step 1: Write the proportion equation
1,125,512.52 : 1,553,355.48 = 641,966.80 : x - Step 2: Convert to fraction form
1,125,512.52/1,553,355.48 = 641,966.80/x - Step 3: Cross multiply
1,125,512.52x = 1,553,355.48 × 641,966.80 - Step 4: Simplify right side
1,125,512.52x = 997,202,646,758.06 - Step 5: Solve for x
x = 997,202,646,758.06/1,125,512.52 - Step 6: Final answer
x = 885,998.72
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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.