Finding the Fourth Proportional to 574,435.68, 792,752.64 and 319,781.28
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Solution
The fourth proportional to 574,435.68, 792,752.64 and 319,781.28 is: 441,315.65
Step by Step Solution
- Step 1: Write the proportion equation
574,435.68 : 792,752.64 = 319,781.28 : x - Step 2: Convert to fraction form
574,435.68/792,752.64 = 319,781.28/x - Step 3: Cross multiply
574,435.68x = 792,752.64 × 319,781.28 - Step 4: Simplify right side
574,435.68x = 253,507,453,942.58 - Step 5: Solve for x
x = 253,507,453,942.58/574,435.68 - Step 6: Final answer
x = 441,315.65
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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.