Finding the Fourth Proportional to 1,991,836.32, 2,748,966.84 and 1,132,525.68
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Solution
The fourth proportional to 1,991,836.32, 2,748,966.84 and 1,132,525.68 is: 1,563,017.76
Step by Step Solution
- Step 1: Write the proportion equation
1,991,836.32 : 2,748,966.84 = 1,132,525.68 : x - Step 2: Convert to fraction form
1,991,836.32/2,748,966.84 = 1,132,525.68/x - Step 3: Cross multiply
1,991,836.32x = 2,748,966.84 × 1,132,525.68 - Step 4: Simplify right side
1,991,836.32x = 3,113,275,539,768.45 - Step 5: Solve for x
x = 3,113,275,539,768.45/1,991,836.32 - Step 6: Final answer
x = 1,563,017.76
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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.