Finding the Fourth Proportional to 1,420,115.90, 1,959,746.74 and 775,534.10
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Solution
The fourth proportional to 1,420,115.90, 1,959,746.74 and 775,534.10 is: 1,070,229.84
Step by Step Solution
- Step 1: Write the proportion equation
1,420,115.90 : 1,959,746.74 = 775,534.10 : x - Step 2: Convert to fraction form
1,420,115.90/1,959,746.74 = 775,534.10/x - Step 3: Cross multiply
1,420,115.90x = 1,959,746.74 × 775,534.10 - Step 4: Simplify right side
1,420,115.90x = 1,519,850,412,496.27 - Step 5: Solve for x
x = 1,519,850,412,496.27/1,420,115.90 - Step 6: Final answer
x = 1,070,229.84
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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.