Finding the Fourth Proportional to 1,412,070.21, 1,948,668.75 and 767,490.21
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Solution
The fourth proportional to 1,412,070.21, 1,948,668.75 and 767,490.21 is: 1,059,142.94
Step by Step Solution
- Step 1: Write the proportion equation
1,412,070.21 : 1,948,668.75 = 767,490.21 : x - Step 2: Convert to fraction form
1,412,070.21/1,948,668.75 = 767,490.21/x - Step 3: Cross multiply
1,412,070.21x = 1,948,668.75 × 767,490.21 - Step 4: Simplify right side
1,412,070.21x = 1,495,584,188,157.94 - Step 5: Solve for x
x = 1,495,584,188,157.94/1,412,070.21 - Step 6: Final answer
x = 1,059,142.94
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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.