Finding the Fourth Proportional to 498,883.74, 688,460.18 and 284,023.79
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Solution
The fourth proportional to 498,883.74, 688,460.18 and 284,023.79 is: 391,953.17
Step by Step Solution
- Step 1: Write the proportion equation
498,883.74 : 688,460.18 = 284,023.79 : x - Step 2: Convert to fraction form
498,883.74/688,460.18 = 284,023.79/x - Step 3: Cross multiply
498,883.74x = 688,460.18 × 284,023.79 - Step 4: Simplify right side
498,883.74x = 195,539,064,725.26 - Step 5: Solve for x
x = 195,539,064,725.26/498,883.74 - Step 6: Final answer
x = 391,953.17
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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.