Finding the Fourth Proportional to 1,128,638.52, 1,693,056.24 and 370,252.80
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Solution
The fourth proportional to 1,128,638.52, 1,693,056.24 and 370,252.80 is: 555,411.50
Step by Step Solution
- Step 1: Write the proportion equation
1,128,638.52 : 1,693,056.24 = 370,252.80 : x - Step 2: Convert to fraction form
1,128,638.52/1,693,056.24 = 370,252.80/x - Step 3: Cross multiply
1,128,638.52x = 1,693,056.24 × 370,252.80 - Step 4: Simplify right side
1,128,638.52x = 626,858,813,417.47 - Step 5: Solve for x
x = 626,858,813,417.47/1,128,638.52 - Step 6: Final answer
x = 555,411.50
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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.