Finding the Fourth Proportional to 432,885.80, 649,328.70 and 354,153.80
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Solution
The fourth proportional to 432,885.80, 649,328.70 and 354,153.80 is: 531,230.70
Step by Step Solution
- Step 1: Write the proportion equation
432,885.80 : 649,328.70 = 354,153.80 : x - Step 2: Convert to fraction form
432,885.80/649,328.70 = 354,153.80/x - Step 3: Cross multiply
432,885.80x = 649,328.70 × 354,153.80 - Step 4: Simplify right side
432,885.80x = 229,962,226,554.06 - Step 5: Solve for x
x = 229,962,226,554.06/432,885.80 - Step 6: Final answer
x = 531,230.70
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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.