Finding the Fourth Proportional to 1,129,888.42, 1,559,276.48 and 664,774.76
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Solution
The fourth proportional to 1,129,888.42, 1,559,276.48 and 664,774.76 is: 917,407.09
Step by Step Solution
- Step 1: Write the proportion equation
1,129,888.42 : 1,559,276.48 = 664,774.76 : x - Step 2: Convert to fraction form
1,129,888.42/1,559,276.48 = 664,774.76/x - Step 3: Cross multiply
1,129,888.42x = 1,559,276.48 × 664,774.76 - Step 4: Simplify right side
1,129,888.42x = 1,036,567,647,765.64 - Step 5: Solve for x
x = 1,036,567,647,765.64/1,129,888.42 - Step 6: Final answer
x = 917,407.09
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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.