Finding the Fourth Proportional to 1,287,346.08, 1,776,620.88 and 714,387.36
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Solution
The fourth proportional to 1,287,346.08, 1,776,620.88 and 714,387.36 is: 985,900.78
Step by Step Solution
- Step 1: Write the proportion equation
1,287,346.08 : 1,776,620.88 = 714,387.36 : x - Step 2: Convert to fraction form
1,287,346.08/1,776,620.88 = 714,387.36/x - Step 3: Cross multiply
1,287,346.08x = 1,776,620.88 × 714,387.36 - Step 4: Simplify right side
1,287,346.08x = 1,269,195,500,184.08 - Step 5: Solve for x
x = 1,269,195,500,184.08/1,287,346.08 - Step 6: Final answer
x = 985,900.78
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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.