Finding the Fourth Proportional to 642,798.72, 886,844.70 and 370,860.12
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Solution
The fourth proportional to 642,798.72, 886,844.70 and 370,860.12 is: 511,661.46
Step by Step Solution
- Step 1: Write the proportion equation
642,798.72 : 886,844.70 = 370,860.12 : x - Step 2: Convert to fraction form
642,798.72/886,844.70 = 370,860.12/x - Step 3: Cross multiply
642,798.72x = 886,844.70 × 370,860.12 - Step 4: Simplify right side
642,798.72x = 328,895,331,863.36 - Step 5: Solve for x
x = 328,895,331,863.36/642,798.72 - Step 6: Final answer
x = 511,661.46
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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.