Finding the Fourth Proportional to 1,280,487.63, 1,921,033.18 and 415,918.68
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Solution
The fourth proportional to 1,280,487.63, 1,921,033.18 and 415,918.68 is: 623,976.03
Step by Step Solution
- Step 1: Write the proportion equation
1,280,487.63 : 1,921,033.18 = 415,918.68 : x - Step 2: Convert to fraction form
1,280,487.63/1,921,033.18 = 415,918.68/x - Step 3: Cross multiply
1,280,487.63x = 1,921,033.18 × 415,918.68 - Step 4: Simplify right side
1,280,487.63x = 798,993,584,461.80 - Step 5: Solve for x
x = 798,993,584,461.80/1,280,487.63 - Step 6: Final answer
x = 623,976.03
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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.