Finding the Fourth Proportional to 430,284.80, 645,423.08 and 261,852.99
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Solution
The fourth proportional to 430,284.80, 645,423.08 and 261,852.99 is: 392,776.98
Step by Step Solution
- Step 1: Write the proportion equation
430,284.80 : 645,423.08 = 261,852.99 : x - Step 2: Convert to fraction form
430,284.80/645,423.08 = 261,852.99/x - Step 3: Cross multiply
430,284.80x = 645,423.08 × 261,852.99 - Step 4: Simplify right side
430,284.80x = 169,005,962,003.74 - Step 5: Solve for x
x = 169,005,962,003.74/430,284.80 - Step 6: Final answer
x = 392,776.98
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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.