Finding the Fourth Proportional to 529,869.05, 731,215.76 and 288,151.05
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Solution
The fourth proportional to 529,869.05, 731,215.76 and 288,151.05 is: 397,646.53
Step by Step Solution
- Step 1: Write the proportion equation
529,869.05 : 731,215.76 = 288,151.05 : x - Step 2: Convert to fraction form
529,869.05/731,215.76 = 288,151.05/x - Step 3: Cross multiply
529,869.05x = 731,215.76 × 288,151.05 - Step 4: Simplify right side
529,869.05x = 210,700,587,132.48 - Step 5: Solve for x
x = 210,700,587,132.48/529,869.05 - Step 6: Final answer
x = 397,646.53
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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.