Finding the Fourth Proportional to 1,521,381.98, 2,099,647.97 and 842,318.48
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Solution
The fourth proportional to 1,521,381.98, 2,099,647.97 and 842,318.48 is: 1,162,477.47
Step by Step Solution
- Step 1: Write the proportion equation
1,521,381.98 : 2,099,647.97 = 842,318.48 : x - Step 2: Convert to fraction form
1,521,381.98/2,099,647.97 = 842,318.48/x - Step 3: Cross multiply
1,521,381.98x = 2,099,647.97 × 842,318.48 - Step 4: Simplify right side
1,521,381.98x = 1,768,572,271,915.65 - Step 5: Solve for x
x = 1,768,572,271,915.65/1,521,381.98 - Step 6: Final answer
x = 1,162,477.47
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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.