Finding the Fourth Proportional to 939,126.12, 1,408,801.49 and 331,788.70
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Solution
The fourth proportional to 939,126.12, 1,408,801.49 and 331,788.70 is: 497,722.73
Step by Step Solution
- Step 1: Write the proportion equation
939,126.12 : 1,408,801.49 = 331,788.70 : x - Step 2: Convert to fraction form
939,126.12/1,408,801.49 = 331,788.70/x - Step 3: Cross multiply
939,126.12x = 1,408,801.49 × 331,788.70 - Step 4: Simplify right side
939,126.12x = 467,424,414,925.16 - Step 5: Solve for x
x = 467,424,414,925.16/939,126.12 - Step 6: Final answer
x = 497,722.73
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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.