Finding the Fourth Proportional to 865,938.80, 1,299,121.04 and 297,328.21
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Solution
The fourth proportional to 865,938.80, 1,299,121.04 and 297,328.21 is: 446,065.39
Step by Step Solution
- Step 1: Write the proportion equation
865,938.80 : 1,299,121.04 = 297,328.21 : x - Step 2: Convert to fraction form
865,938.80/1,299,121.04 = 297,328.21/x - Step 3: Cross multiply
865,938.80x = 1,299,121.04 × 297,328.21 - Step 4: Simplify right side
865,938.80x = 386,265,330,892.06 - Step 5: Solve for x
x = 386,265,330,892.06/865,938.80 - Step 6: Final answer
x = 446,065.39
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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.