Finding the Fourth Proportional to 3,829,156.45, 5,285,588.93 and 3,420,548.31
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Solution
The fourth proportional to 3,829,156.45, 5,285,588.93 and 3,420,548.31 is: 4,721,565.32
Step by Step Solution
- Step 1: Write the proportion equation
3,829,156.45 : 5,285,588.93 = 3,420,548.31 : x - Step 2: Convert to fraction form
3,829,156.45/5,285,588.93 = 3,420,548.31/x - Step 3: Cross multiply
3,829,156.45x = 5,285,588.93 × 3,420,548.31 - Step 4: Simplify right side
3,829,156.45x = 18,079,612,281,866.21 - Step 5: Solve for x
x = 18,079,612,281,866.21/3,829,156.45 - Step 6: Final answer
x = 4,721,565.32
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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.