Finding the Fourth Proportional to 1,423,421.36, 1,964,127.68 and 850,339.84
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Solution
The fourth proportional to 1,423,421.36, 1,964,127.68 and 850,339.84 is: 1,173,353.21
Step by Step Solution
- Step 1: Write the proportion equation
1,423,421.36 : 1,964,127.68 = 850,339.84 : x - Step 2: Convert to fraction form
1,423,421.36/1,964,127.68 = 850,339.84/x - Step 3: Cross multiply
1,423,421.36x = 1,964,127.68 × 850,339.84 - Step 4: Simplify right side
1,423,421.36x = 1,670,176,017,150.77 - Step 5: Solve for x
x = 1,670,176,017,150.77/1,423,421.36 - Step 6: Final answer
x = 1,173,353.21
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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.