Finding the Fourth Proportional to 679,468.91, 1,019,150.35 and 394,977.99
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Solution
The fourth proportional to 679,468.91, 1,019,150.35 and 394,977.99 is: 592,436.18
Step by Step Solution
- Step 1: Write the proportion equation
679,468.91 : 1,019,150.35 = 394,977.99 : x - Step 2: Convert to fraction form
679,468.91/1,019,150.35 = 394,977.99/x - Step 3: Cross multiply
679,468.91x = 1,019,150.35 × 394,977.99 - Step 4: Simplify right side
679,468.91x = 402,541,961,806.92 - Step 5: Solve for x
x = 402,541,961,806.92/679,468.91 - Step 6: Final answer
x = 592,436.18
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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.