Finding the Fourth Proportional to 679,209.99, 937,289.97 and 388,811.94
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Solution
The fourth proportional to 679,209.99, 937,289.97 and 388,811.94 is: 536,549.13
Step by Step Solution
- Step 1: Write the proportion equation
679,209.99 : 937,289.97 = 388,811.94 : x - Step 2: Convert to fraction form
679,209.99/937,289.97 = 388,811.94/x - Step 3: Cross multiply
679,209.99x = 937,289.97 × 388,811.94 - Step 4: Simplify right side
679,209.99x = 364,429,531,578.24 - Step 5: Solve for x
x = 364,429,531,578.24/679,209.99 - Step 6: Final answer
x = 536,549.13
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.