Finding the Fourth Proportional to 1,051,527.96, 1,451,137.68 and 643,621.68
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Solution
The fourth proportional to 1,051,527.96, 1,451,137.68 and 643,621.68 is: 888,215.73
Step by Step Solution
- Step 1: Write the proportion equation
1,051,527.96 : 1,451,137.68 = 643,621.68 : x - Step 2: Convert to fraction form
1,051,527.96/1,451,137.68 = 643,621.68/x - Step 3: Cross multiply
1,051,527.96x = 1,451,137.68 × 643,621.68 - Step 4: Simplify right side
1,051,527.96x = 933,983,671,512.90 - Step 5: Solve for x
x = 933,983,671,512.90/1,051,527.96 - Step 6: Final answer
x = 888,215.73
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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.