Finding the Fourth Proportional to 745,149.36, 1,117,803.63 and 318,729.30
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Solution
The fourth proportional to 745,149.36, 1,117,803.63 and 318,729.30 is: 478,127.99
Step by Step Solution
- Step 1: Write the proportion equation
745,149.36 : 1,117,803.63 = 318,729.30 : x - Step 2: Convert to fraction form
745,149.36/1,117,803.63 = 318,729.30/x - Step 3: Cross multiply
745,149.36x = 1,117,803.63 × 318,729.30 - Step 4: Simplify right side
745,149.36x = 356,276,768,527.36 - Step 5: Solve for x
x = 356,276,768,527.36/745,149.36 - Step 6: Final answer
x = 478,127.99
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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.