Finding the Fourth Proportional to 693,358.38, 1,038,261.99 and 479,830.63
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Solution
The fourth proportional to 693,358.38, 1,038,261.99 and 479,830.63 is: 718,517.18
Step by Step Solution
- Step 1: Write the proportion equation
693,358.38 : 1,038,261.99 = 479,830.63 : x - Step 2: Convert to fraction form
693,358.38/1,038,261.99 = 479,830.63/x - Step 3: Cross multiply
693,358.38x = 1,038,261.99 × 479,830.63 - Step 4: Simplify right side
693,358.38x = 498,189,904,766.75 - Step 5: Solve for x
x = 498,189,904,766.75/693,358.38 - Step 6: Final answer
x = 718,517.18
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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.