Finding the Fourth Proportional to 1,927,638.36, 2,660,209.56 and 1,163,542.68
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Solution
The fourth proportional to 1,927,638.36, 2,660,209.56 and 1,163,542.68 is: 1,605,730.32
Step by Step Solution
- Step 1: Write the proportion equation
1,927,638.36 : 2,660,209.56 = 1,163,542.68 : x - Step 2: Convert to fraction form
1,927,638.36/2,660,209.56 = 1,163,542.68/x - Step 3: Cross multiply
1,927,638.36x = 2,660,209.56 × 1,163,542.68 - Step 4: Simplify right side
1,927,638.36x = 3,095,267,360,804.02 - Step 5: Solve for x
x = 3,095,267,360,804.02/1,927,638.36 - Step 6: Final answer
x = 1,605,730.32
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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.