Finding the Fourth Proportional to 487,929.20, 731,893.80 and 239,097.20
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Solution
The fourth proportional to 487,929.20, 731,893.80 and 239,097.20 is: 358,645.80
Step by Step Solution
- Step 1: Write the proportion equation
487,929.20 : 731,893.80 = 239,097.20 : x - Step 2: Convert to fraction form
487,929.20/731,893.80 = 239,097.20/x - Step 3: Cross multiply
487,929.20x = 731,893.80 × 239,097.20 - Step 4: Simplify right side
487,929.20x = 174,993,758,277.36 - Step 5: Solve for x
x = 174,993,758,277.36/487,929.20 - Step 6: Final answer
x = 358,645.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.