Finding the Fourth Proportional to 629,903.12, 869,265.70 and 343,423.13
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Solution
The fourth proportional to 629,903.12, 869,265.70 and 343,423.13 is: 473,923.59
Step by Step Solution
- Step 1: Write the proportion equation
629,903.12 : 869,265.70 = 343,423.13 : x - Step 2: Convert to fraction form
629,903.12/869,265.70 = 343,423.13/x - Step 3: Cross multiply
629,903.12x = 869,265.70 × 343,423.13 - Step 4: Simplify right side
629,903.12x = 298,525,948,810.25 - Step 5: Solve for x
x = 298,525,948,810.25/629,903.12 - Step 6: Final answer
x = 473,923.59
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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.