Finding the Fourth Proportional to 1,121,821.60, 1,683,315.60 and 490,799.20
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Solution
The fourth proportional to 1,121,821.60, 1,683,315.60 and 490,799.20 is: 736,453.95
Step by Step Solution
- Step 1: Write the proportion equation
1,121,821.60 : 1,683,315.60 = 490,799.20 : x - Step 2: Convert to fraction form
1,121,821.60/1,683,315.60 = 490,799.20/x - Step 3: Cross multiply
1,121,821.60x = 1,683,315.60 × 490,799.20 - Step 4: Simplify right side
1,121,821.60x = 826,169,949,827.52 - Step 5: Solve for x
x = 826,169,949,827.52/1,121,821.60 - Step 6: Final answer
x = 736,453.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.