Finding the Fourth Proportional to 1,125,802.20, 1,553,560.38 and 616,495.80
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Solution
The fourth proportional to 1,125,802.20, 1,553,560.38 and 616,495.80 is: 850,738.65
Step by Step Solution
- Step 1: Write the proportion equation
1,125,802.20 : 1,553,560.38 = 616,495.80 : x - Step 2: Convert to fraction form
1,125,802.20/1,553,560.38 = 616,495.80/x - Step 3: Cross multiply
1,125,802.20x = 1,553,560.38 × 616,495.80 - Step 4: Simplify right side
1,125,802.20x = 957,763,449,316.40 - Step 5: Solve for x
x = 957,763,449,316.40/1,125,802.20 - Step 6: Final answer
x = 850,738.65
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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.