Finding the Fourth Proportional to 1,108,987.24, 1,664,223.92 and 389,331.09
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Solution
The fourth proportional to 1,108,987.24, 1,664,223.92 and 389,331.09 is: 584,257.49
Step by Step Solution
- Step 1: Write the proportion equation
1,108,987.24 : 1,664,223.92 = 389,331.09 : x - Step 2: Convert to fraction form
1,108,987.24/1,664,223.92 = 389,331.09/x - Step 3: Cross multiply
1,108,987.24x = 1,664,223.92 × 389,331.09 - Step 4: Simplify right side
1,108,987.24x = 647,934,106,050.17 - Step 5: Solve for x
x = 647,934,106,050.17/1,108,987.24 - Step 6: Final answer
x = 584,257.49
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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.