Finding the Fourth Proportional to 1,427,619.99, 2,141,990.75 and 628,341.20
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Solution
The fourth proportional to 1,427,619.99, 2,141,990.75 and 628,341.20 is: 942,758.61
Step by Step Solution
- Step 1: Write the proportion equation
1,427,619.99 : 2,141,990.75 = 628,341.20 : x - Step 2: Convert to fraction form
1,427,619.99/2,141,990.75 = 628,341.20/x - Step 3: Cross multiply
1,427,619.99x = 2,141,990.75 × 628,341.20 - Step 4: Simplify right side
1,427,619.99x = 1,345,901,038,243.90 - Step 5: Solve for x
x = 1,345,901,038,243.90/1,427,619.99 - Step 6: Final answer
x = 942,758.61
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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.