Finding the Fourth Proportional to 687,295.49, 1,029,602.21 and 449,918.51
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Solution
The fourth proportional to 687,295.49, 1,029,602.21 and 449,918.51 is: 673,999.90
Step by Step Solution
- Step 1: Write the proportion equation
687,295.49 : 1,029,602.21 = 449,918.51 : x - Step 2: Convert to fraction form
687,295.49/1,029,602.21 = 449,918.51/x - Step 3: Cross multiply
687,295.49x = 1,029,602.21 × 449,918.51 - Step 4: Simplify right side
687,295.49x = 463,237,091,510.25 - Step 5: Solve for x
x = 463,237,091,510.25/687,295.49 - Step 6: Final answer
x = 673,999.90
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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.