Finding the Fourth Proportional to 1,078,611.84, 1,618,125.84 and 413,712
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Solution
The fourth proportional to 1,078,611.84, 1,618,125.84 and 413,712 is: 620,647.81
Step by Step Solution
- Step 1: Write the proportion equation
1,078,611.84 : 1,618,125.84 = 413,712 : x - Step 2: Convert to fraction form
1,078,611.84/1,618,125.84 = 413,712/x - Step 3: Cross multiply
1,078,611.84x = 1,618,125.84 × 413,712 - Step 4: Simplify right side
1,078,611.84x = 669,438,077,518.08 - Step 5: Solve for x
x = 669,438,077,518.08/1,078,611.84 - Step 6: Final answer
x = 620,647.81
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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.