Finding the Fourth Proportional to 578,860.80, 868,429.17 and 199,784.84
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Solution
The fourth proportional to 578,860.80, 868,429.17 and 199,784.84 is: 299,724.88
Step by Step Solution
- Step 1: Write the proportion equation
578,860.80 : 868,429.17 = 199,784.84 : x - Step 2: Convert to fraction form
578,860.80/868,429.17 = 199,784.84/x - Step 3: Cross multiply
578,860.80x = 868,429.17 × 199,784.84 - Step 4: Simplify right side
578,860.80x = 173,498,983,841.41 - Step 5: Solve for x
x = 173,498,983,841.41/578,860.80 - Step 6: Final answer
x = 299,724.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.