Finding the Fourth Proportional to 1,078,230.90, 1,617,346.35 and 330,179.70
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Solution
The fourth proportional to 1,078,230.90, 1,617,346.35 and 330,179.70 is: 495,269.55
Step by Step Solution
- Step 1: Write the proportion equation
1,078,230.90 : 1,617,346.35 = 330,179.70 : x - Step 2: Convert to fraction form
1,078,230.90/1,617,346.35 = 330,179.70/x - Step 3: Cross multiply
1,078,230.90x = 1,617,346.35 × 330,179.70 - Step 4: Simplify right side
1,078,230.90x = 534,014,932,639.10 - Step 5: Solve for x
x = 534,014,932,639.10/1,078,230.90 - Step 6: Final answer
x = 495,269.55
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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.