Finding the Fourth Proportional to 540,986.99, 746,617.50 and 311,552.87
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Solution
The fourth proportional to 540,986.99, 746,617.50 and 311,552.87 is: 429,974.89
Step by Step Solution
- Step 1: Write the proportion equation
540,986.99 : 746,617.50 = 311,552.87 : x - Step 2: Convert to fraction form
540,986.99/746,617.50 = 311,552.87/x - Step 3: Cross multiply
540,986.99x = 746,617.50 × 311,552.87 - Step 4: Simplify right side
540,986.99x = 232,610,821,184.14 - Step 5: Solve for x
x = 232,610,821,184.14/540,986.99 - Step 6: Final answer
x = 429,974.89
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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.