Finding the Fourth Proportional to 506,534.29, 699,034.59 and 288,775.17
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Solution
The fourth proportional to 506,534.29, 699,034.59 and 288,775.17 is: 398,519.58
Step by Step Solution
- Step 1: Write the proportion equation
506,534.29 : 699,034.59 = 288,775.17 : x - Step 2: Convert to fraction form
506,534.29/699,034.59 = 288,775.17/x - Step 3: Cross multiply
506,534.29x = 699,034.59 × 288,775.17 - Step 4: Simplify right side
506,534.29x = 201,863,832,563.13 - Step 5: Solve for x
x = 201,863,832,563.13/506,534.29 - Step 6: Final answer
x = 398,519.58
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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.