Finding the Fourth Proportional to 1,432,468.80, 2,149,696.80 and 1,078,228.80
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Solution
The fourth proportional to 1,432,468.80, 2,149,696.80 and 1,078,228.80 is: 1,618,091.09
Step by Step Solution
- Step 1: Write the proportion equation
1,432,468.80 : 2,149,696.80 = 1,078,228.80 : x - Step 2: Convert to fraction form
1,432,468.80/2,149,696.80 = 1,078,228.80/x - Step 3: Cross multiply
1,432,468.80x = 2,149,696.80 × 1,078,228.80 - Step 4: Simplify right side
1,432,468.80x = 2,317,865,001,027.84 - Step 5: Solve for x
x = 2,317,865,001,027.84/1,432,468.80 - Step 6: Final answer
x = 1,618,091.09
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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.