Finding the Fourth Proportional to 492,601.86, 679,829.07 and 274,878.99
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Solution
The fourth proportional to 492,601.86, 679,829.07 and 274,878.99 is: 379,354.49
Step by Step Solution
- Step 1: Write the proportion equation
492,601.86 : 679,829.07 = 274,878.99 : x - Step 2: Convert to fraction form
492,601.86/679,829.07 = 274,878.99/x - Step 3: Cross multiply
492,601.86x = 679,829.07 × 274,878.99 - Step 4: Simplify right side
492,601.86x = 186,870,728,134.24 - Step 5: Solve for x
x = 186,870,728,134.24/492,601.86 - Step 6: Final answer
x = 379,354.49
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1.5x scale
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.