Finding the Fourth Proportional to 1,928,312.14, 2,661,013.07 and 1,057,117.06
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Solution
The fourth proportional to 1,928,312.14, 2,661,013.07 and 1,057,117.06 is: 1,458,789.92
Step by Step Solution
- Step 1: Write the proportion equation
1,928,312.14 : 2,661,013.07 = 1,057,117.06 : x - Step 2: Convert to fraction form
1,928,312.14/2,661,013.07 = 1,057,117.06/x - Step 3: Cross multiply
1,928,312.14x = 2,661,013.07 × 1,057,117.06 - Step 4: Simplify right side
1,928,312.14x = 2,813,002,309,170.23 - Step 5: Solve for x
x = 2,813,002,309,170.23/1,928,312.14 - Step 6: Final answer
x = 1,458,789.92
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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.