Finding the Fourth Proportional to 1,274,907.74, 1,912,569.30 and 376,440.28
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Solution
The fourth proportional to 1,274,907.74, 1,912,569.30 and 376,440.28 is: 564,721.74
Step by Step Solution
- Step 1: Write the proportion equation
1,274,907.74 : 1,912,569.30 = 376,440.28 : x - Step 2: Convert to fraction form
1,274,907.74/1,912,569.30 = 376,440.28/x - Step 3: Cross multiply
1,274,907.74x = 1,912,569.30 × 376,440.28 - Step 4: Simplify right side
1,274,907.74x = 719,968,118,029.98 - Step 5: Solve for x
x = 719,968,118,029.98/1,274,907.74 - Step 6: Final answer
x = 564,721.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.