Finding the Fourth Proportional to 624,464.13, 861,781.37 and 382,699.99
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Solution
The fourth proportional to 624,464.13, 861,781.37 and 382,699.99 is: 528,138.77
Step by Step Solution
- Step 1: Write the proportion equation
624,464.13 : 861,781.37 = 382,699.99 : x - Step 2: Convert to fraction form
624,464.13/861,781.37 = 382,699.99/x - Step 3: Cross multiply
624,464.13x = 861,781.37 × 382,699.99 - Step 4: Simplify right side
624,464.13x = 329,803,717,613.23 - Step 5: Solve for x
x = 329,803,717,613.23/624,464.13 - Step 6: Final answer
x = 528,138.77
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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.