Finding the Fourth Proportional to 1,391,635.74, 2,086,795.65 and 539,106.69
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Solution
The fourth proportional to 1,391,635.74, 2,086,795.65 and 539,106.69 is: 808,405.15
Step by Step Solution
- Step 1: Write the proportion equation
1,391,635.74 : 2,086,795.65 = 539,106.69 : x - Step 2: Convert to fraction form
1,391,635.74/2,086,795.65 = 539,106.69/x - Step 3: Cross multiply
1,391,635.74x = 2,086,795.65 × 539,106.69 - Step 4: Simplify right side
1,391,635.74x = 1,125,005,495,577.90 - Step 5: Solve for x
x = 1,125,005,495,577.90/1,391,635.74 - Step 6: Final answer
x = 808,405.15
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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.