Finding the Fourth Proportional to 1,761,943.40, 2,430,903.57 and 987,461
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Solution
The fourth proportional to 1,761,943.40, 2,430,903.57 and 987,461 is: 1,362,372.07
Step by Step Solution
- Step 1: Write the proportion equation
1,761,943.40 : 2,430,903.57 = 987,461 : x - Step 2: Convert to fraction form
1,761,943.40/2,430,903.57 = 987,461/x - Step 3: Cross multiply
1,761,943.40x = 2,430,903.57 × 987,461 - Step 4: Simplify right side
1,761,943.40x = 2,400,422,470,135.77 - Step 5: Solve for x
x = 2,400,422,470,135.77/1,761,943.40 - Step 6: Final answer
x = 1,362,372.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.