Finding the Fourth Proportional to 407,867.49, 562,924.55 and 339,776.61
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Solution
The fourth proportional to 407,867.49, 562,924.55 and 339,776.61 is: 468,947.88
Step by Step Solution
- Step 1: Write the proportion equation
407,867.49 : 562,924.55 = 339,776.61 : x - Step 2: Convert to fraction form
407,867.49/562,924.55 = 339,776.61/x - Step 3: Cross multiply
407,867.49x = 562,924.55 × 339,776.61 - Step 4: Simplify right side
407,867.49x = 191,268,595,284.78 - Step 5: Solve for x
x = 191,268,595,284.78/407,867.49 - Step 6: Final answer
x = 468,947.88
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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.