Finding the Fourth Proportional to 4,957,065.38, 6,840,731.80 and 2,781,603.62
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Solution
The fourth proportional to 4,957,065.38, 6,840,731.80 and 2,781,603.62 is: 3,838,602.66
Step by Step Solution
- Step 1: Write the proportion equation
4,957,065.38 : 6,840,731.80 = 2,781,603.62 : x - Step 2: Convert to fraction form
4,957,065.38/6,840,731.80 = 2,781,603.62/x - Step 3: Cross multiply
4,957,065.38x = 6,840,731.80 × 2,781,603.62 - Step 4: Simplify right side
4,957,065.38x = 19,028,204,338,329.12 - Step 5: Solve for x
x = 19,028,204,338,329.12/4,957,065.38 - Step 6: Final answer
x = 3,838,602.66
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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.