Finding the Fourth Proportional to 1,480,949.12, 2,221,509.80 and 416,074.20
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Solution
The fourth proportional to 1,480,949.12, 2,221,509.80 and 416,074.20 is: 624,135.50
Step by Step Solution
- Step 1: Write the proportion equation
1,480,949.12 : 2,221,509.80 = 416,074.20 : x - Step 2: Convert to fraction form
1,480,949.12/2,221,509.80 = 416,074.20/x - Step 3: Cross multiply
1,480,949.12x = 2,221,509.80 × 416,074.20 - Step 4: Simplify right side
1,480,949.12x = 924,312,912,827.16 - Step 5: Solve for x
x = 924,312,912,827.16/1,480,949.12 - Step 6: Final answer
x = 624,135.50
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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.