Finding the Fourth Proportional to 874,337.14, 1,206,605.82 and 487,178.74
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Solution
The fourth proportional to 874,337.14, 1,206,605.82 and 487,178.74 is: 672,318.12
Step by Step Solution
- Step 1: Write the proportion equation
874,337.14 : 1,206,605.82 = 487,178.74 : x - Step 2: Convert to fraction form
874,337.14/1,206,605.82 = 487,178.74/x - Step 3: Cross multiply
874,337.14x = 1,206,605.82 × 487,178.74 - Step 4: Simplify right side
874,337.14x = 587,832,703,064.27 - Step 5: Solve for x
x = 587,832,703,064.27/874,337.14 - Step 6: Final answer
x = 672,318.12
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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.