Finding the Fourth Proportional to 1,125,398.45, 1,553,197.70 and 641,852.75
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Solution
The fourth proportional to 1,125,398.45, 1,553,197.70 and 641,852.75 is: 885,841.11
Step by Step Solution
- Step 1: Write the proportion equation
1,125,398.45 : 1,553,197.70 = 641,852.75 : x - Step 2: Convert to fraction form
1,125,398.45/1,553,197.70 = 641,852.75/x - Step 3: Cross multiply
1,125,398.45x = 1,553,197.70 × 641,852.75 - Step 4: Simplify right side
1,125,398.45x = 996,924,215,038.68 - Step 5: Solve for x
x = 996,924,215,038.68/1,125,398.45 - Step 6: Final answer
x = 885,841.11
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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.