Finding the Fourth Proportional to 1,201,960.64, 1,658,642.64 and 657,992.18
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Solution
The fourth proportional to 1,201,960.64, 1,658,642.64 and 657,992.18 is: 907,994.70
Step by Step Solution
- Step 1: Write the proportion equation
1,201,960.64 : 1,658,642.64 = 657,992.18 : x - Step 2: Convert to fraction form
1,201,960.64/1,658,642.64 = 657,992.18/x - Step 3: Cross multiply
1,201,960.64x = 1,658,642.64 × 657,992.18 - Step 4: Simplify right side
1,201,960.64x = 1,091,373,886,534.56 - Step 5: Solve for x
x = 1,091,373,886,534.56/1,201,960.64 - Step 6: Final answer
x = 907,994.70
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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.