Finding the Fourth Proportional to 1,358,143.53, 1,874,128.36 and 785,220.63
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Solution
The fourth proportional to 1,358,143.53, 1,874,128.36 and 785,220.63 is: 1,083,541.04
Step by Step Solution
- Step 1: Write the proportion equation
1,358,143.53 : 1,874,128.36 = 785,220.63 : x - Step 2: Convert to fraction form
1,358,143.53/1,874,128.36 = 785,220.63/x - Step 3: Cross multiply
1,358,143.53x = 1,874,128.36 × 785,220.63 - Step 4: Simplify right side
1,358,143.53x = 1,471,604,251,540.07 - Step 5: Solve for x
x = 1,471,604,251,540.07/1,358,143.53 - Step 6: Final answer
x = 1,083,541.04
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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.