Finding the Fourth Proportional to 1,418,189.70, 2,125,510.65 and 708,415.86
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Solution
The fourth proportional to 1,418,189.70, 2,125,510.65 and 708,415.86 is: 1,061,737.69
Step by Step Solution
- Step 1: Write the proportion equation
1,418,189.70 : 2,125,510.65 = 708,415.86 : x - Step 2: Convert to fraction form
1,418,189.70/2,125,510.65 = 708,415.86/x - Step 3: Cross multiply
1,418,189.70x = 2,125,510.65 × 708,415.86 - Step 4: Simplify right side
1,418,189.70x = 1,505,745,455,058.91 - Step 5: Solve for x
x = 1,505,745,455,058.91/1,418,189.70 - Step 6: Final answer
x = 1,061,737.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.