Finding the Fourth Proportional to 1,207,810.14, 1,666,783.38 and 663,980.97
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Solution
The fourth proportional to 1,207,810.14, 1,666,783.38 and 663,980.97 is: 916,296.70
Step by Step Solution
- Step 1: Write the proportion equation
1,207,810.14 : 1,666,783.38 = 663,980.97 : x - Step 2: Convert to fraction form
1,207,810.14/1,666,783.38 = 663,980.97/x - Step 3: Cross multiply
1,207,810.14x = 1,666,783.38 × 663,980.97 - Step 4: Simplify right side
1,207,810.14x = 1,106,712,445,432.28 - Step 5: Solve for x
x = 1,106,712,445,432.28/1,207,810.14 - Step 6: Final answer
x = 916,296.70
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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.