Finding the Fourth Proportional to 1,201,928.28, 1,658,595.32 and 657,958.84
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Solution
The fourth proportional to 1,201,928.28, 1,658,595.32 and 657,958.84 is: 907,947.23
Step by Step Solution
- Step 1: Write the proportion equation
1,201,928.28 : 1,658,595.32 = 657,958.84 : x - Step 2: Convert to fraction form
1,201,928.28/1,658,595.32 = 657,958.84/x - Step 3: Cross multiply
1,201,928.28x = 1,658,595.32 × 657,958.84 - Step 4: Simplify right side
1,201,928.28x = 1,091,287,452,776.63 - Step 5: Solve for x
x = 1,091,287,452,776.63/1,201,928.28 - Step 6: Final answer
x = 907,947.23
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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.