Finding the Fourth Proportional to 1,186,461.84, 1,637,309.16 and 642,585.18
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Solution
The fourth proportional to 1,186,461.84, 1,637,309.16 and 642,585.18 is: 886,763.12
Step by Step Solution
- Step 1: Write the proportion equation
1,186,461.84 : 1,637,309.16 = 642,585.18 : x - Step 2: Convert to fraction form
1,186,461.84/1,637,309.16 = 642,585.18/x - Step 3: Cross multiply
1,186,461.84x = 1,637,309.16 × 642,585.18 - Step 4: Simplify right side
1,186,461.84x = 1,052,110,601,294.25 - Step 5: Solve for x
x = 1,052,110,601,294.25/1,186,461.84 - Step 6: Final answer
x = 886,763.12
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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.