Finding the Fourth Proportional to 747,214.42, 1,029,951.30 and 505,408.76
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Solution
The fourth proportional to 747,214.42, 1,029,951.30 and 505,408.76 is: 696,649.31
Step by Step Solution
- Step 1: Write the proportion equation
747,214.42 : 1,029,951.30 = 505,408.76 : x - Step 2: Convert to fraction form
747,214.42/1,029,951.30 = 505,408.76/x - Step 3: Cross multiply
747,214.42x = 1,029,951.30 × 505,408.76 - Step 4: Simplify right side
747,214.42x = 520,546,409,393.39 - Step 5: Solve for x
x = 520,546,409,393.39/747,214.42 - Step 6: Final answer
x = 696,649.31
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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.