Finding the Fourth Proportional to 1,578,440.62, 2,178,840.40 and 1,034,611.44
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Solution
The fourth proportional to 1,578,440.62, 2,178,840.40 and 1,034,611.44 is: 1,428,152.05
Step by Step Solution
- Step 1: Write the proportion equation
1,578,440.62 : 2,178,840.40 = 1,034,611.44 : x - Step 2: Convert to fraction form
1,578,440.62/2,178,840.40 = 1,034,611.44/x - Step 3: Cross multiply
1,578,440.62x = 2,178,840.40 × 1,034,611.44 - Step 4: Simplify right side
1,578,440.62x = 2,254,253,203,774.18 - Step 5: Solve for x
x = 2,254,253,203,774.18/1,578,440.62 - Step 6: Final answer
x = 1,428,152.05
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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.