Finding the Fourth Proportional to 745,489.98, 1,118,253.20 and 272,175.80
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Solution
The fourth proportional to 745,489.98, 1,118,253.20 and 272,175.80 is: 408,270.35
Step by Step Solution
- Step 1: Write the proportion equation
745,489.98 : 1,118,253.20 = 272,175.80 : x - Step 2: Convert to fraction form
745,489.98/1,118,253.20 = 272,175.80/x - Step 3: Cross multiply
745,489.98x = 1,118,253.20 × 272,175.80 - Step 4: Simplify right side
745,489.98x = 304,361,452,360.42 - Step 5: Solve for x
x = 304,361,452,360.42/745,489.98 - Step 6: Final answer
x = 408,270.35
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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.