Finding the Fourth Proportional to 1,526,438.64, 2,106,379.76 and 847,321.68
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Solution
The fourth proportional to 1,526,438.64, 2,106,379.76 and 847,321.68 is: 1,169,245.32
Step by Step Solution
- Step 1: Write the proportion equation
1,526,438.64 : 2,106,379.76 = 847,321.68 : x - Step 2: Convert to fraction form
1,526,438.64/2,106,379.76 = 847,321.68/x - Step 3: Cross multiply
1,526,438.64x = 2,106,379.76 × 847,321.68 - Step 4: Simplify right side
1,526,438.64x = 1,784,781,236,961.20 - Step 5: Solve for x
x = 1,784,781,236,961.20/1,526,438.64 - Step 6: Final answer
x = 1,169,245.32
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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.