Finding the Fourth Proportional to 947,177.80, 1,420,306.20 and 315,878.38
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Solution
The fourth proportional to 947,177.80, 1,420,306.20 and 315,878.38 is: 473,664.00
Step by Step Solution
- Step 1: Write the proportion equation
947,177.80 : 1,420,306.20 = 315,878.38 : x - Step 2: Convert to fraction form
947,177.80/1,420,306.20 = 315,878.38/x - Step 3: Cross multiply
947,177.80x = 1,420,306.20 × 315,878.38 - Step 4: Simplify right side
947,177.80x = 448,644,021,559.96 - Step 5: Solve for x
x = 448,644,021,559.96/947,177.80 - Step 6: Final answer
x = 473,664.00
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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.