Finding the Fourth Proportional to 613,823.12, 847,118.43 and 372,115.88
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Solution
The fourth proportional to 613,823.12, 847,118.43 and 372,115.88 is: 513,545.69
Step by Step Solution
- Step 1: Write the proportion equation
613,823.12 : 847,118.43 = 372,115.88 : x - Step 2: Convert to fraction form
613,823.12/847,118.43 = 372,115.88/x - Step 3: Cross multiply
613,823.12x = 847,118.43 × 372,115.88 - Step 4: Simplify right side
613,823.12x = 315,226,215,808.08 - Step 5: Solve for x
x = 315,226,215,808.08/613,823.12 - Step 6: Final answer
x = 513,545.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.