Finding the Fourth Proportional to 929,734.52, 1,283,043.15 and 521,828.19
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Solution
The fourth proportional to 929,734.52, 1,283,043.15 and 521,828.19 is: 720,128.25
Step by Step Solution
- Step 1: Write the proportion equation
929,734.52 : 1,283,043.15 = 521,828.19 : x - Step 2: Convert to fraction form
929,734.52/1,283,043.15 = 521,828.19/x - Step 3: Cross multiply
929,734.52x = 1,283,043.15 × 521,828.19 - Step 4: Simplify right side
929,734.52x = 669,528,084,656.40 - Step 5: Solve for x
x = 669,528,084,656.40/929,734.52 - Step 6: Final answer
x = 720,128.25
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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.