Finding the Fourth Proportional to 709,654.46, 979,314.99 and 387,361.94
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Solution
The fourth proportional to 709,654.46, 979,314.99 and 387,361.94 is: 534,555.02
Step by Step Solution
- Step 1: Write the proportion equation
709,654.46 : 979,314.99 = 387,361.94 : x - Step 2: Convert to fraction form
709,654.46/979,314.99 = 387,361.94/x - Step 3: Cross multiply
709,654.46x = 979,314.99 × 387,361.94 - Step 4: Simplify right side
709,654.46x = 379,349,354,397.48 - Step 5: Solve for x
x = 379,349,354,397.48/709,654.46 - Step 6: Final answer
x = 534,555.02
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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.