Finding the Fourth Proportional to 1,557,905.70, 2,336,421.15 and 493,274.10
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Solution
The fourth proportional to 1,557,905.70, 2,336,421.15 and 493,274.10 is: 739,772.66
Step by Step Solution
- Step 1: Write the proportion equation
1,557,905.70 : 2,336,421.15 = 493,274.10 : x - Step 2: Convert to fraction form
1,557,905.70/2,336,421.15 = 493,274.10/x - Step 3: Cross multiply
1,557,905.70x = 2,336,421.15 × 493,274.10 - Step 4: Simplify right side
1,557,905.70x = 1,152,496,039,987.21 - Step 5: Solve for x
x = 1,152,496,039,987.21/1,557,905.70 - Step 6: Final answer
x = 739,772.66
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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.