Finding the Fourth Proportional to 1,490,315.76, 2,235,745.80 and 691,487.28
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Solution
The fourth proportional to 1,490,315.76, 2,235,745.80 and 691,487.28 is: 1,037,357.20
Step by Step Solution
- Step 1: Write the proportion equation
1,490,315.76 : 2,235,745.80 = 691,487.28 : x - Step 2: Convert to fraction form
1,490,315.76/2,235,745.80 = 691,487.28/x - Step 3: Cross multiply
1,490,315.76x = 2,235,745.80 × 691,487.28 - Step 4: Simplify right side
1,490,315.76x = 1,545,989,782,013.42 - Step 5: Solve for x
x = 1,545,989,782,013.42/1,490,315.76 - Step 6: Final answer
x = 1,037,357.20
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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.