Finding the Fourth Proportional to 868,643.10, 1,302,964.65 and 585,207.90
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Solution
The fourth proportional to 868,643.10, 1,302,964.65 and 585,207.90 is: 877,811.85
Step by Step Solution
- Step 1: Write the proportion equation
868,643.10 : 1,302,964.65 = 585,207.90 : x - Step 2: Convert to fraction form
868,643.10/1,302,964.65 = 585,207.90/x - Step 3: Cross multiply
868,643.10x = 1,302,964.65 × 585,207.90 - Step 4: Simplify right side
868,643.10x = 762,505,206,600.74 - Step 5: Solve for x
x = 762,505,206,600.74/868,643.10 - Step 6: Final answer
x = 877,811.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.