Finding the Fourth Proportional to 745,395.40, 1,118,102.82 and 212,933.80
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Solution
The fourth proportional to 745,395.40, 1,118,102.82 and 212,933.80 is: 319,403.48
Step by Step Solution
- Step 1: Write the proportion equation
745,395.40 : 1,118,102.82 = 212,933.80 : x - Step 2: Convert to fraction form
745,395.40/1,118,102.82 = 212,933.80/x - Step 3: Cross multiply
745,395.40x = 1,118,102.82 × 212,933.80 - Step 4: Simplify right side
745,395.40x = 238,081,882,253.32 - Step 5: Solve for x
x = 238,081,882,253.32/745,395.40 - Step 6: Final answer
x = 319,403.48
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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.