Finding the Fourth Proportional to 1,111,431.76, 1,533,777.42 and 602,134.12
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Solution
The fourth proportional to 1,111,431.76, 1,533,777.42 and 602,134.12 is: 830,945.95
Step by Step Solution
- Step 1: Write the proportion equation
1,111,431.76 : 1,533,777.42 = 602,134.12 : x - Step 2: Convert to fraction form
1,111,431.76/1,533,777.42 = 602,134.12/x - Step 3: Cross multiply
1,111,431.76x = 1,533,777.42 × 602,134.12 - Step 4: Simplify right side
1,111,431.76x = 923,539,717,067.57 - Step 5: Solve for x
x = 923,539,717,067.57/1,111,431.76 - Step 6: Final answer
x = 830,945.95
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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.