Finding the Fourth Proportional to 509,112.74, 763,042.16 and 209,406.26
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Solution
The fourth proportional to 509,112.74, 763,042.16 and 209,406.26 is: 313,851.52
Step by Step Solution
- Step 1: Write the proportion equation
509,112.74 : 763,042.16 = 209,406.26 : x - Step 2: Convert to fraction form
509,112.74/763,042.16 = 209,406.26/x - Step 3: Cross multiply
509,112.74x = 763,042.16 × 209,406.26 - Step 4: Simplify right side
509,112.74x = 159,785,804,947.92 - Step 5: Solve for x
x = 159,785,804,947.92/509,112.74 - Step 6: Final answer
x = 313,851.52
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1.5x scale
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.