Finding the Fourth Proportional to 2,187,654.74, 3,018,964.09 and 1,207,594.31
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Solution
The fourth proportional to 2,187,654.74, 3,018,964.09 and 1,207,594.31 is: 1,666,480.45
Step by Step Solution
- Step 1: Write the proportion equation
2,187,654.74 : 3,018,964.09 = 1,207,594.31 : x - Step 2: Convert to fraction form
2,187,654.74/3,018,964.09 = 1,207,594.31/x - Step 3: Cross multiply
2,187,654.74x = 3,018,964.09 × 1,207,594.31 - Step 4: Simplify right side
2,187,654.74x = 3,645,683,857,178.33 - Step 5: Solve for x
x = 3,645,683,857,178.33/2,187,654.74 - Step 6: Final answer
x = 1,666,480.45
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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.