Finding the Fourth Proportional to 1,128,190.68, 1,692,340.70 and 369,965.07
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Solution
The fourth proportional to 1,128,190.68, 1,692,340.70 and 369,965.07 is: 554,965.53
Step by Step Solution
- Step 1: Write the proportion equation
1,128,190.68 : 1,692,340.70 = 369,965.07 : x - Step 2: Convert to fraction form
1,128,190.68/1,692,340.70 = 369,965.07/x - Step 3: Cross multiply
1,128,190.68x = 1,692,340.70 × 369,965.07 - Step 4: Simplify right side
1,128,190.68x = 626,106,943,689.52 - Step 5: Solve for x
x = 626,106,943,689.52/1,128,190.68 - Step 6: Final answer
x = 554,965.53
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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.