Finding the Fourth Proportional to 693,355.38, 1,038,257.49 and 479,827.63
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Solution
The fourth proportional to 693,355.38, 1,038,257.49 and 479,827.63 is: 718,512.69
Step by Step Solution
- Step 1: Write the proportion equation
693,355.38 : 1,038,257.49 = 479,827.63 : x - Step 2: Convert to fraction form
693,355.38/1,038,257.49 = 479,827.63/x - Step 3: Cross multiply
693,355.38x = 1,038,257.49 × 479,827.63 - Step 4: Simplify right side
693,355.38x = 498,184,633,853.62 - Step 5: Solve for x
x = 498,184,633,853.62/693,355.38 - Step 6: Final answer
x = 718,512.69
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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.