Finding the Fourth Proportional to 1,515,967.20, 2,273,774.40 and 394,123.68
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Solution
The fourth proportional to 1,515,967.20, 2,273,774.40 and 394,123.68 is: 591,139.66
Step by Step Solution
- Step 1: Write the proportion equation
1,515,967.20 : 2,273,774.40 = 394,123.68 : x - Step 2: Convert to fraction form
1,515,967.20/2,273,774.40 = 394,123.68/x - Step 3: Cross multiply
1,515,967.20x = 2,273,774.40 × 394,123.68 - Step 4: Simplify right side
1,515,967.20x = 896,148,334,017.79 - Step 5: Solve for x
x = 896,148,334,017.79/1,515,967.20 - Step 6: Final answer
x = 591,139.66
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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.