Finding the Fourth Proportional to 772,805.20, 1,159,207.80 and 352,901.20
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Solution
The fourth proportional to 772,805.20, 1,159,207.80 and 352,901.20 is: 529,351.80
Step by Step Solution
- Step 1: Write the proportion equation
772,805.20 : 1,159,207.80 = 352,901.20 : x - Step 2: Convert to fraction form
772,805.20/1,159,207.80 = 352,901.20/x - Step 3: Cross multiply
772,805.20x = 1,159,207.80 × 352,901.20 - Step 4: Simplify right side
772,805.20x = 409,085,823,669.36 - Step 5: Solve for x
x = 409,085,823,669.36/772,805.20 - Step 6: Final answer
x = 529,351.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.