Finding the Fourth Proportional to 1,380,116.17, 2,070,398.98 and 407,578.84
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Solution
The fourth proportional to 1,380,116.17, 2,070,398.98 and 407,578.84 is: 611,434.62
Step by Step Solution
- Step 1: Write the proportion equation
1,380,116.17 : 2,070,398.98 = 407,578.84 : x - Step 2: Convert to fraction form
1,380,116.17/2,070,398.98 = 407,578.84/x - Step 3: Cross multiply
1,380,116.17x = 2,070,398.98 × 407,578.84 - Step 4: Simplify right side
1,380,116.17x = 843,850,809,939.06 - Step 5: Solve for x
x = 843,850,809,939.06/1,380,116.17 - Step 6: Final answer
x = 611,434.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.