Finding the Fourth Proportional to 1,440,423.81, 2,160,589.24 and 429,554.14
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Solution
The fourth proportional to 1,440,423.81, 2,160,589.24 and 429,554.14 is: 644,317.35
Step by Step Solution
- Step 1: Write the proportion equation
1,440,423.81 : 2,160,589.24 = 429,554.14 : x - Step 2: Convert to fraction form
1,440,423.81/2,160,589.24 = 429,554.14/x - Step 3: Cross multiply
1,440,423.81x = 2,160,589.24 × 429,554.14 - Step 4: Simplify right side
1,440,423.81x = 928,090,048,016.92 - Step 5: Solve for x
x = 928,090,048,016.92/1,440,423.81 - Step 6: Final answer
x = 644,317.35
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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.