Finding the Fourth Proportional to 629,800.98, 869,062.41 and 354,129.54
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Solution
The fourth proportional to 629,800.98, 869,062.41 and 354,129.54 is: 488,663.37
Step by Step Solution
- Step 1: Write the proportion equation
629,800.98 : 869,062.41 = 354,129.54 : x - Step 2: Convert to fraction form
629,800.98/869,062.41 = 354,129.54/x - Step 3: Cross multiply
629,800.98x = 869,062.41 × 354,129.54 - Step 4: Simplify right side
629,800.98x = 307,760,671,484.59 - Step 5: Solve for x
x = 307,760,671,484.59/629,800.98 - Step 6: Final answer
x = 488,663.37
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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.