Finding the Fourth Proportional to 478,493.74, 660,315.27 and 260,711.49
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Solution
The fourth proportional to 478,493.74, 660,315.27 and 260,711.49 is: 359,778.53
Step by Step Solution
- Step 1: Write the proportion equation
478,493.74 : 660,315.27 = 260,711.49 : x - Step 2: Convert to fraction form
478,493.74/660,315.27 = 260,711.49/x - Step 3: Cross multiply
478,493.74x = 660,315.27 × 260,711.49 - Step 4: Simplify right side
478,493.74x = 172,151,773,306.32 - Step 5: Solve for x
x = 172,151,773,306.32/478,493.74 - Step 6: Final answer
x = 359,778.53
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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.