Finding the Fourth Proportional to 709,855.38, 979,596.05 and 387,565.49
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Solution
The fourth proportional to 709,855.38, 979,596.05 and 387,565.49 is: 534,837.99
Step by Step Solution
- Step 1: Write the proportion equation
709,855.38 : 979,596.05 = 387,565.49 : x - Step 2: Convert to fraction form
709,855.38/979,596.05 = 387,565.49/x - Step 3: Cross multiply
709,855.38x = 979,596.05 × 387,565.49 - Step 4: Simplify right side
709,855.38x = 379,657,623,631.48 - Step 5: Solve for x
x = 379,657,623,631.48/709,855.38 - Step 6: Final answer
x = 534,837.99
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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.