Finding the Fourth Proportional to 778,541.62, 1,074,418.68 and 434,407.62
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Solution
The fourth proportional to 778,541.62, 1,074,418.68 and 434,407.62 is: 599,499.95
Step by Step Solution
- Step 1: Write the proportion equation
778,541.62 : 1,074,418.68 = 434,407.62 : x - Step 2: Convert to fraction form
778,541.62/1,074,418.68 = 434,407.62/x - Step 3: Cross multiply
778,541.62x = 1,074,418.68 × 434,407.62 - Step 4: Simplify right side
778,541.62x = 466,735,661,662.34 - Step 5: Solve for x
x = 466,735,661,662.34/778,541.62 - Step 6: Final answer
x = 599,499.95
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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.