Finding the Fourth Proportional to 1,351,901.22, 1,865,840.96 and 771,313.74
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Solution
The fourth proportional to 1,351,901.22, 1,865,840.96 and 771,313.74 is: 1,064,536.92
Step by Step Solution
- Step 1: Write the proportion equation
1,351,901.22 : 1,865,840.96 = 771,313.74 : x - Step 2: Convert to fraction form
1,351,901.22/1,865,840.96 = 771,313.74/x - Step 3: Cross multiply
1,351,901.22x = 1,865,840.96 × 771,313.74 - Step 4: Simplify right side
1,351,901.22x = 1,439,148,765,246.22 - Step 5: Solve for x
x = 1,439,148,765,246.22/1,351,901.22 - Step 6: Final answer
x = 1,064,536.92
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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.