Finding the Fourth Proportional to 1,355,401.36, 1,868,920.77 and 864,714.97
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Solution
The fourth proportional to 1,355,401.36, 1,868,920.77 and 864,714.97 is: 1,192,328.57
Step by Step Solution
- Step 1: Write the proportion equation
1,355,401.36 : 1,868,920.77 = 864,714.97 : x - Step 2: Convert to fraction form
1,355,401.36/1,868,920.77 = 864,714.97/x - Step 3: Cross multiply
1,355,401.36x = 1,868,920.77 × 864,714.97 - Step 4: Simplify right side
1,355,401.36x = 1,616,083,767,562.93 - Step 5: Solve for x
x = 1,616,083,767,562.93/1,355,401.36 - Step 6: Final answer
x = 1,192,328.57
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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.