Finding the Fourth Proportional to 1,187,549.50, 1,638,921.99 and 651,109.18
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Solution
The fourth proportional to 1,187,549.50, 1,638,921.99 and 651,109.18 is: 898,587.51
Step by Step Solution
- Step 1: Write the proportion equation
1,187,549.50 : 1,638,921.99 = 651,109.18 : x - Step 2: Convert to fraction form
1,187,549.50/1,638,921.99 = 651,109.18/x - Step 3: Cross multiply
1,187,549.50x = 1,638,921.99 × 651,109.18 - Step 4: Simplify right side
1,187,549.50x = 1,067,117,152,992.87 - Step 5: Solve for x
x = 1,067,117,152,992.87/1,187,549.50 - Step 6: Final answer
x = 898,587.51
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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.