Finding the Fourth Proportional to 1,190,860.71, 1,643,378.92 and 647,000.99
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Solution
The fourth proportional to 1,190,860.71, 1,643,378.92 and 647,000.99 is: 892,856.55
Step by Step Solution
- Step 1: Write the proportion equation
1,190,860.71 : 1,643,378.92 = 647,000.99 : x - Step 2: Convert to fraction form
1,190,860.71/1,643,378.92 = 647,000.99/x - Step 3: Cross multiply
1,190,860.71x = 1,643,378.92 × 647,000.99 - Step 4: Simplify right side
1,190,860.71x = 1,063,267,788,185.13 - Step 5: Solve for x
x = 1,063,267,788,185.13/1,190,860.71 - Step 6: Final answer
x = 892,856.55
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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.