Finding the Fourth Proportional to 638,059.04, 880,560.80 and 351,579.08
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Solution
The fourth proportional to 638,059.04, 880,560.80 and 351,579.08 is: 485,200.80
Step by Step Solution
- Step 1: Write the proportion equation
638,059.04 : 880,560.80 = 351,579.08 : x - Step 2: Convert to fraction form
638,059.04/880,560.80 = 351,579.08/x - Step 3: Cross multiply
638,059.04x = 880,560.80 × 351,579.08 - Step 4: Simplify right side
638,059.04x = 309,586,755,948.06 - Step 5: Solve for x
x = 309,586,755,948.06/638,059.04 - Step 6: Final answer
x = 485,200.80
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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.