Finding the Fourth Proportional to 386,324.80, 579,487.20 and 366,641.80
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Solution
The fourth proportional to 386,324.80, 579,487.20 and 366,641.80 is: 549,962.70
Step by Step Solution
- Step 1: Write the proportion equation
386,324.80 : 579,487.20 = 366,641.80 : x - Step 2: Convert to fraction form
386,324.80/579,487.20 = 366,641.80/x - Step 3: Cross multiply
386,324.80x = 579,487.20 × 366,641.80 - Step 4: Simplify right side
386,324.80x = 212,464,230,084.96 - Step 5: Solve for x
x = 212,464,230,084.96/386,324.80 - Step 6: Final answer
x = 549,962.70
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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.