Finding the Fourth Proportional to 432,428.99, 648,331.63 and 263,909.70
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Solution
The fourth proportional to 432,428.99, 648,331.63 and 263,909.70 is: 395,674.23
Step by Step Solution
- Step 1: Write the proportion equation
432,428.99 : 648,331.63 = 263,909.70 : x - Step 2: Convert to fraction form
432,428.99/648,331.63 = 263,909.70/x - Step 3: Cross multiply
432,428.99x = 648,331.63 × 263,909.70 - Step 4: Simplify right side
432,428.99x = 171,101,005,314.04 - Step 5: Solve for x
x = 171,101,005,314.04/432,428.99 - Step 6: Final answer
x = 395,674.23
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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.