Finding the Fourth Proportional to 772,805.70, 1,159,208.55 and 352,901.70
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Solution
The fourth proportional to 772,805.70, 1,159,208.55 and 352,901.70 is: 529,352.55
Step by Step Solution
- Step 1: Write the proportion equation
772,805.70 : 1,159,208.55 = 352,901.70 : x - Step 2: Convert to fraction form
772,805.70/1,159,208.55 = 352,901.70/x - Step 3: Cross multiply
772,805.70x = 1,159,208.55 × 352,901.70 - Step 4: Simplify right side
772,805.70x = 409,086,667,949.54 - Step 5: Solve for x
x = 409,086,667,949.54/772,805.70 - Step 6: Final answer
x = 529,352.55
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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.