Finding the Fourth Proportional to 1,397,701.62, 1,928,802.84 and 777,503.76
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Solution
The fourth proportional to 1,397,701.62, 1,928,802.84 and 777,503.76 is: 1,072,941.06
Step by Step Solution
- Step 1: Write the proportion equation
1,397,701.62 : 1,928,802.84 = 777,503.76 : x - Step 2: Convert to fraction form
1,397,701.62/1,928,802.84 = 777,503.76/x - Step 3: Cross multiply
1,397,701.62x = 1,928,802.84 × 777,503.76 - Step 4: Simplify right side
1,397,701.62x = 1,499,651,460,398.68 - Step 5: Solve for x
x = 1,499,651,460,398.68/1,397,701.62 - Step 6: Final answer
x = 1,072,941.06
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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.