Finding the Fourth Proportional to 591,387.78, 816,115.58 and 319,455.68
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Solution
The fourth proportional to 591,387.78, 816,115.58 and 319,455.68 is: 440,849.08
Step by Step Solution
- Step 1: Write the proportion equation
591,387.78 : 816,115.58 = 319,455.68 : x - Step 2: Convert to fraction form
591,387.78/816,115.58 = 319,455.68/x - Step 3: Cross multiply
591,387.78x = 816,115.58 × 319,455.68 - Step 4: Simplify right side
591,387.78x = 260,712,759,475.19 - Step 5: Solve for x
x = 260,712,759,475.19/591,387.78 - Step 6: Final answer
x = 440,849.08
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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.