Finding the Fourth Proportional to 1,246,751.15, 1,719,718.76 and 864,638.51
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Solution
The fourth proportional to 1,246,751.15, 1,719,718.76 and 864,638.51 is: 1,192,647.84
Step by Step Solution
- Step 1: Write the proportion equation
1,246,751.15 : 1,719,718.76 = 864,638.51 : x - Step 2: Convert to fraction form
1,246,751.15/1,719,718.76 = 864,638.51/x - Step 3: Cross multiply
1,246,751.15x = 1,719,718.76 × 864,638.51 - Step 4: Simplify right side
1,246,751.15x = 1,486,935,059,828.45 - Step 5: Solve for x
x = 1,486,935,059,828.45/1,246,751.15 - Step 6: Final answer
x = 1,192,647.84
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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.