Finding the Fourth Proportional to 1,423,557.62, 1,964,504.21 and 770,181.55
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Solution
The fourth proportional to 1,423,557.62, 1,964,504.21 and 770,181.55 is: 1,062,847.66
Step by Step Solution
- Step 1: Write the proportion equation
1,423,557.62 : 1,964,504.21 = 770,181.55 : x - Step 2: Convert to fraction form
1,423,557.62/1,964,504.21 = 770,181.55/x - Step 3: Cross multiply
1,423,557.62x = 1,964,504.21 × 770,181.55 - Step 4: Simplify right side
1,423,557.62x = 1,513,024,888,677.16 - Step 5: Solve for x
x = 1,513,024,888,677.16/1,423,557.62 - Step 6: Final answer
x = 1,062,847.66
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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.