Finding the Fourth Proportional to 855,106.49, 1,280,102.56 and 517,124.27
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Solution
The fourth proportional to 855,106.49, 1,280,102.56 and 517,124.27 is: 774,139.96
Step by Step Solution
- Step 1: Write the proportion equation
855,106.49 : 1,280,102.56 = 517,124.27 : x - Step 2: Convert to fraction form
855,106.49/1,280,102.56 = 517,124.27/x - Step 3: Cross multiply
855,106.49x = 1,280,102.56 × 517,124.27 - Step 4: Simplify right side
855,106.49x = 661,972,101,865.13 - Step 5: Solve for x
x = 661,972,101,865.13/855,106.49 - Step 6: Final answer
x = 774,139.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.