Finding the Fourth Proportional to 1,292,583.99, 1,783,304.19 and 748,422.75
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Solution
The fourth proportional to 1,292,583.99, 1,783,304.19 and 748,422.75 is: 1,032,556.06
Step by Step Solution
- Step 1: Write the proportion equation
1,292,583.99 : 1,783,304.19 = 748,422.75 : x - Step 2: Convert to fraction form
1,292,583.99/1,783,304.19 = 748,422.75/x - Step 3: Cross multiply
1,292,583.99x = 1,783,304.19 × 748,422.75 - Step 4: Simplify right side
1,292,583.99x = 1,334,665,425,966.32 - Step 5: Solve for x
x = 1,334,665,425,966.32/1,292,583.99 - Step 6: Final answer
x = 1,032,556.06
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1.5x scale
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.