Finding the Fourth Proportional to 4,680,806.40, 7,007,212.80 and 4,403,980.80
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Solution
The fourth proportional to 4,680,806.40, 7,007,212.80 and 4,403,980.80 is: 6,592,802.18
Step by Step Solution
- Step 1: Write the proportion equation
4,680,806.40 : 7,007,212.80 = 4,403,980.80 : x - Step 2: Convert to fraction form
4,680,806.40/7,007,212.80 = 4,403,980.80/x - Step 3: Cross multiply
4,680,806.40x = 7,007,212.80 × 4,403,980.80 - Step 4: Simplify right side
4,680,806.40x = 30,859,630,632,714.24 - Step 5: Solve for x
x = 30,859,630,632,714.24/4,680,806.40 - Step 6: Final answer
x = 6,592,802.18
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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.