Finding the Fourth Proportional to 745,520.04, 1,118,121.28 and 212,899.68
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Solution
The fourth proportional to 745,520.04, 1,118,121.28 and 212,899.68 is: 319,304.18
Step by Step Solution
- Step 1: Write the proportion equation
745,520.04 : 1,118,121.28 = 212,899.68 : x - Step 2: Convert to fraction form
745,520.04/1,118,121.28 = 212,899.68/x - Step 3: Cross multiply
745,520.04x = 1,118,121.28 × 212,899.68 - Step 4: Simplify right side
745,520.04x = 238,047,662,713.19 - Step 5: Solve for x
x = 238,047,662,713.19/745,520.04 - Step 6: Final answer
x = 319,304.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.