Finding the Fourth Proportional to 768,554.70, 1,152,874.08 and 319,320.99
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Solution
The fourth proportional to 768,554.70, 1,152,874.08 and 319,320.99 is: 478,998.95
Step by Step Solution
- Step 1: Write the proportion equation
768,554.70 : 1,152,874.08 = 319,320.99 : x - Step 2: Convert to fraction form
768,554.70/1,152,874.08 = 319,320.99/x - Step 3: Cross multiply
768,554.70x = 1,152,874.08 × 319,320.99 - Step 4: Simplify right side
768,554.70x = 368,136,892,570.94 - Step 5: Solve for x
x = 368,136,892,570.94/768,554.70 - Step 6: Final answer
x = 478,998.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.