Finding the Fourth Proportional to 1,427,378.84, 2,141,069.88 and 480,670.28
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Solution
The fourth proportional to 1,427,378.84, 2,141,069.88 and 480,670.28 is: 721,005.97
Step by Step Solution
- Step 1: Write the proportion equation
1,427,378.84 : 2,141,069.88 = 480,670.28 : x - Step 2: Convert to fraction form
1,427,378.84/2,141,069.88 = 480,670.28/x - Step 3: Cross multiply
1,427,378.84x = 2,141,069.88 × 480,670.28 - Step 4: Simplify right side
1,427,378.84x = 1,029,148,658,719.17 - Step 5: Solve for x
x = 1,029,148,658,719.17/1,427,378.84 - Step 6: Final answer
x = 721,005.97
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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.