Finding the Fourth Proportional to 1,163,840.50, 1,605,859.12 and 680,312.12
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Solution
The fourth proportional to 1,163,840.50, 1,605,859.12 and 680,312.12 is: 938,689.98
Step by Step Solution
- Step 1: Write the proportion equation
1,163,840.50 : 1,605,859.12 = 680,312.12 : x - Step 2: Convert to fraction form
1,163,840.50/1,605,859.12 = 680,312.12/x - Step 3: Cross multiply
1,163,840.50x = 1,605,859.12 × 680,312.12 - Step 4: Simplify right side
1,163,840.50x = 1,092,485,415,169.63 - Step 5: Solve for x
x = 1,092,485,415,169.63/1,163,840.50 - Step 6: Final answer
x = 938,689.98
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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.