Finding the Fourth Proportional to 432,869.80, 649,304.70 and 354,137.80
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Solution
The fourth proportional to 432,869.80, 649,304.70 and 354,137.80 is: 531,206.70
Step by Step Solution
- Step 1: Write the proportion equation
432,869.80 : 649,304.70 = 354,137.80 : x - Step 2: Convert to fraction form
432,869.80/649,304.70 = 354,137.80/x - Step 3: Cross multiply
432,869.80x = 649,304.70 × 354,137.80 - Step 4: Simplify right side
432,869.80x = 229,943,337,987.66 - Step 5: Solve for x
x = 229,943,337,987.66/432,869.80 - Step 6: Final answer
x = 531,206.70
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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.