Finding the Fourth Proportional to 657,609.36, 907,242.69 and 381,920.28
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Solution
The fourth proportional to 657,609.36, 907,242.69 and 381,920.28 is: 526,900.02
Step by Step Solution
- Step 1: Write the proportion equation
657,609.36 : 907,242.69 = 381,920.28 : x - Step 2: Convert to fraction form
657,609.36/907,242.69 = 381,920.28/x - Step 3: Cross multiply
657,609.36x = 907,242.69 × 381,920.28 - Step 4: Simplify right side
657,609.36x = 346,494,382,192.75 - Step 5: Solve for x
x = 346,494,382,192.75/657,609.36 - Step 6: Final answer
x = 526,900.02
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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.