Finding the Fourth Proportional to 778,725.48, 1,074,639.16 and 434,557.75
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Solution
The fourth proportional to 778,725.48, 1,074,639.16 and 434,557.75 is: 599,688.58
Step by Step Solution
- Step 1: Write the proportion equation
778,725.48 : 1,074,639.16 = 434,557.75 : x - Step 2: Convert to fraction form
778,725.48/1,074,639.16 = 434,557.75/x - Step 3: Cross multiply
778,725.48x = 1,074,639.16 × 434,557.75 - Step 4: Simplify right side
778,725.48x = 466,992,775,431.49 - Step 5: Solve for x
x = 466,992,775,431.49/778,725.48 - Step 6: Final answer
x = 599,688.58
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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.