Finding the Fourth Proportional to 432,905.80, 649,358.70 and 354,173.80
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Solution
The fourth proportional to 432,905.80, 649,358.70 and 354,173.80 is: 531,260.70
Step by Step Solution
- Step 1: Write the proportion equation
432,905.80 : 649,358.70 = 354,173.80 : x - Step 2: Convert to fraction form
432,905.80/649,358.70 = 354,173.80/x - Step 3: Cross multiply
432,905.80x = 649,358.70 × 354,173.80 - Step 4: Simplify right side
432,905.80x = 229,985,838,342.06 - Step 5: Solve for x
x = 229,985,838,342.06/432,905.80 - Step 6: Final answer
x = 531,260.70
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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.