Finding the Fourth Proportional to 624,878.47, 861,853.87 and 431,609.62
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Solution
The fourth proportional to 624,878.47, 861,853.87 and 431,609.62 is: 595,290.83
Step by Step Solution
- Step 1: Write the proportion equation
624,878.47 : 861,853.87 = 431,609.62 : x - Step 2: Convert to fraction form
624,878.47/861,853.87 = 431,609.62/x - Step 3: Cross multiply
624,878.47x = 861,853.87 × 431,609.62 - Step 4: Simplify right side
624,878.47x = 371,984,421,326.23 - Step 5: Solve for x
x = 371,984,421,326.23/624,878.47 - Step 6: Final answer
x = 595,290.83
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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.