Finding the Fourth Proportional to 1,011,620.70, 1,394,415.18 and 684,830.66
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Solution
The fourth proportional to 1,011,620.70, 1,394,415.18 and 684,830.66 is: 943,968.68
Step by Step Solution
- Step 1: Write the proportion equation
1,011,620.70 : 1,394,415.18 = 684,830.66 : x - Step 2: Convert to fraction form
1,011,620.70/1,394,415.18 = 684,830.66/x - Step 3: Cross multiply
1,011,620.70x = 1,394,415.18 × 684,830.66 - Step 4: Simplify right side
1,011,620.70x = 954,938,261,061.34 - Step 5: Solve for x
x = 954,938,261,061.34/1,011,620.70 - Step 6: Final answer
x = 943,968.68
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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.