Finding the Fourth Proportional to 674,478.54, 1,009,904.85 and 513,788.99
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Solution
The fourth proportional to 674,478.54, 1,009,904.85 and 513,788.99 is: 769,302.44
Step by Step Solution
- Step 1: Write the proportion equation
674,478.54 : 1,009,904.85 = 513,788.99 : x - Step 2: Convert to fraction form
674,478.54/1,009,904.85 = 513,788.99/x - Step 3: Cross multiply
674,478.54x = 1,009,904.85 × 513,788.99 - Step 4: Simplify right side
674,478.54x = 518,877,987,828.08 - Step 5: Solve for x
x = 518,877,987,828.08/674,478.54 - Step 6: Final answer
x = 769,302.44
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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.