Finding the Fourth Proportional to 478,624.25, 660,501.58 and 260,832.99
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Solution
The fourth proportional to 478,624.25, 660,501.58 and 260,832.99 is: 359,949.59
Step by Step Solution
- Step 1: Write the proportion equation
478,624.25 : 660,501.58 = 260,832.99 : x - Step 2: Convert to fraction form
478,624.25/660,501.58 = 260,832.99/x - Step 3: Cross multiply
478,624.25x = 660,501.58 × 260,832.99 - Step 4: Simplify right side
478,624.25x = 172,280,599,860.29 - Step 5: Solve for x
x = 172,280,599,860.29/478,624.25 - Step 6: Final answer
x = 359,949.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.