Finding the Fourth Proportional to 564,965.80, 779,658.43 and 306,847.78
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Solution
The fourth proportional to 564,965.80, 779,658.43 and 306,847.78 is: 423,452.99
Step by Step Solution
- Step 1: Write the proportion equation
564,965.80 : 779,658.43 = 306,847.78 : x - Step 2: Convert to fraction form
564,965.80/779,658.43 = 306,847.78/x - Step 3: Cross multiply
564,965.80x = 779,658.43 × 306,847.78 - Step 4: Simplify right side
564,965.80x = 239,236,458,403.79 - Step 5: Solve for x
x = 239,236,458,403.79/564,965.80 - Step 6: Final answer
x = 423,452.99
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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.