Finding the Fourth Proportional to 540,106.74, 745,324.61 and 310,646.70
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Solution
The fourth proportional to 540,106.74, 745,324.61 and 310,646.70 is: 428,679.39
Step by Step Solution
- Step 1: Write the proportion equation
540,106.74 : 745,324.61 = 310,646.70 : x - Step 2: Convert to fraction form
540,106.74/745,324.61 = 310,646.70/x - Step 3: Cross multiply
540,106.74x = 745,324.61 × 310,646.70 - Step 4: Simplify right side
540,106.74x = 231,532,628,972.05 - Step 5: Solve for x
x = 231,532,628,972.05/540,106.74 - Step 6: Final answer
x = 428,679.39
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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.