Finding the Fourth Proportional to 768,556.70, 1,152,877.08 and 319,322.99
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Solution
The fourth proportional to 768,556.70, 1,152,877.08 and 319,322.99 is: 479,001.95
Step by Step Solution
- Step 1: Write the proportion equation
768,556.70 : 1,152,877.08 = 319,322.99 : x - Step 2: Convert to fraction form
768,556.70/1,152,877.08 = 319,322.99/x - Step 3: Cross multiply
768,556.70x = 1,152,877.08 × 319,322.99 - Step 4: Simplify right side
768,556.70x = 368,140,156,288.07 - Step 5: Solve for x
x = 368,140,156,288.07/768,556.70 - Step 6: Final answer
x = 479,001.95
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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.