Finding the Fourth Proportional to 1,420,640, 1,960,458.58 and 776,043.62
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Solution
The fourth proportional to 1,420,640, 1,960,458.58 and 776,043.62 is: 1,070,926.75
Step by Step Solution
- Step 1: Write the proportion equation
1,420,640 : 1,960,458.58 = 776,043.62 : x - Step 2: Convert to fraction form
1,420,640/1,960,458.58 = 776,043.62/x - Step 3: Cross multiply
1,420,640x = 1,960,458.58 × 776,043.62 - Step 4: Simplify right side
1,420,640x = 1,521,401,373,283.26 - Step 5: Solve for x
x = 1,521,401,373,283.26/1,420,640 - Step 6: Final answer
x = 1,070,926.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.